Annual Report 2009 of the South-American Regional Committee on Paleogene Stratigraphy

This year was dedicated to the organization of a symposium on the Paleogene of South and Central America and the Caribbean, to be held at the X Argentinean Congress of Paleontology and Biostratigraphy and VII Latin American Congress of Paleontology (La Plata, Argentina, 20-24th September, 2010). The aim of the symposium is to have an overview of research related to the Paleogene of South and Central America, and to provide an opportunity for the meeting of members of the Regional Committee to discuss current activities and working plans for 2011-2012. The web page for the Regional Committee (http://striweb.si.edu/jaramillo/committee/index.html) has been maintained and actualized, including news, research activities and a list of recent publications concerning the Paleogene of South and Central America.

Report by Carlos Jaramillo, chairman and Carolina Nañez, secretary



Annual Report 2008 of the South-American Regional Committee on Paleogene Stratigraphy

In this period, N. Malumian, chairman of the SARCPS since its creation in 1991, has stepped down. He was replaced by Carlos Jaramillo, continuing Carolina Náñez as secretary. In this transitional year, a web page for the Regional Committee was prepared and is now available at http://striweb.si.edu/jaramillo/committee/index.html; this page will report on the activities of the Committee and news of interest for researchers working on Paleogene stratigraphy, and it already has a list of recent publications concerning the Paleogene of South and Central America.
Also, a number of colleagues from different countries and specialties were invited to participate in the Regional Committee, including Tania Lindner Dutra from Brazil, Luis Felipe Hinojosa from Chile, German Bayona from Colombia, Teresita Aguilar from Costa Rica, Manuel Iturralde-Vinent from Cuba, Enrique Martínez-Hernández from Mexico, Sara Morón from Panama and Javier Jacay from Peru. A regional meeting is being planned in Argentina in 2010, to gather our collaborators for a discussion on the advances of the stratigraphy of the Paleogene in South and Central America.

Report by Carlos Jaramillo, chairman and Carolina Nañez, secretary


Annual Report 2007 of South American Regional Committee on Paleogene Stratigraphy

The South American Regional Committee on Paleogene Stratigraphy sponsored the Fifth Argentinean Ichnologic Meeting and Third Ichnologic Meeting of the Mercosur, held on March 28-30 (2007) in Ushuaia, Tierra del Fuego, Argentina, organized by the Laboratorio de Geología Andina (chairman: Dr. E. Olivero). During the meeting, several papers on Paleogene ichnology were presented, particularly a symposium was held on the evolution of the terrestrial ichnofauna of central Patagonia, coordinated by J. Genise. The marine Paleogene outcrops on the Atlantic Coast of the Tierra del Fuego Island were visited in a three-day post-meeting field trip.
Reported research on the Paleogene reflects activity mainly in Antarctica, Argentina and Colombia. In Argentina, research to identify series and stages boundaries and events is continuously carried on, sometimes with difficulty due to the absence or scarcity of index fossils.

Papers published:
Casadío, S.; Parras, A.; Griffin, M. & Marenssi, S. 2007. Borers and encrusters as the presence of hermit crabs in Antarctic Eocene gastropods shells. Antarctic Science 19(3):297-309.
Rodríguez Brizuela, R.; Marenssi, S..; Barreda, V. & Santillana, S. 2007. Palynofacial approach across the Cretaceous-Paleogene boundary in Marambio (Seymour) Island, Antarctic Peninsula. Revista de la Asociación Geológica Argentina 62 (2):236-241.
Panti, C.; Césari, S.; Marenssi, S. y Olivero, E. A new araucarian fossil species from the Paleogene of southern Argentina. 2007. Ameghiniana 44 (1):215-222.
Marenssi, S.A. 2006. Eustatically-controlled sedimentation recorded by Eocene strata of the James Ross Basin, Antarctica. En: Francis, J.E., Pirrie, D. & Crame, J.A. (eds.), Cretaceous-Tertiary high-latitude palaeoenvironments, James Ross Basin, Antarctica¨. Geological Society of London, Special Publications 258:125-133.
Goin, F.J.; Reguero, M, Pascual, R., Von Koenigswald, W., Woodburne, M.O., Case, J.A., Marenssi, S., Vieytes, C. & Vizcaíno, S.F. 2006. First Gondwanatherian Mammals from Antarctica.. In: Francis, J.E., Pirrie, D. & Crame, J.A (eds), Cretaceous-Tertiary high-latitude palaeoenvironments, James Ross Basin, Antarctica¨. Geological Society of London, Special Publications 258:135-144.
Tambussi, C.P.; Acosta Hospitaleche, C.I.; Reguero, M.A. & Marenssi, S. 2006. Late Eocene penguins from West Antarctica: systematic and biostratigraphy. In: Francis, J.E., Pirrie, D. & Crame, J.A (eds.), Cretaceous-Tertiary high-latitude palaeoenvironments, James Ross Basin, Antarctica. Geological Society of London, Special Publications 258:145-161.
Bond, M., Reguero, M., Vizcaíno, S, & Marenssi, S. 2006. A new ¨South American ungulate¨ (Mammalia: Litopterna) from the Eocene of the Antarctic Peninsula. In: Francis, J.E., Pirrie, D. & Crame, J.A (eds.), Cretaceous-Tertiary high-latitude palaeoenvironments, James Ross Basin, Antarctica. Geological Society of London, Special Publications 258:163-176.
Malumián, N. & Olivero, E,.2006. El Grupo Cabo Domingo, Tierra del Fuego: Bioestratigrafía, paleoambientes y acontecimientos del Eoceno-Mioceno marino. Revista de la Asociación Geológica Argentina, 61(2):139-160.
Olivero E. & Malumián, N., 2007. Mesozoic-Cenozoic Stratigraphy of the Fuegian Andes, Argentina. En: Geology and Geophysics of Isla Grande de Tierra del Fuego.Field-Trip Guide Booklet. Geologica Acta vol. 5, nº 4.
García López, D. A. 2006. Un singular notoungulado Eoceno del noroesteArgentino. Ameghiniana 43 (4): 39R-40R.
Hongn, F.; del Papa; C.; Powell J.; Petrinovic I.; Mon, R.; Deraco, V. 2007. Middle Eocene deformation and sedimentation in the Puna - Eastern Cordillera transition (23º-26º): Control by preexisting heterogeneities on the pattern of initial Andean shortening. Geology 35 (3): 271-274.
Bayona, G. & Jaramillo, C.A. 2007. Resultados paleomagnéticos en unidades del Paleogeno de Colombia y oeste de Venezuela y posibles usos para caracterización de contactos. Geología Colombiana 31:57-72.
Bayona, G., Cortés, M., Jaramillo, C., Ojeda, G., Aristizabal, J.J., & Reyes-Harker, A. 2007. La deformación pre-neogena de la Cordillera Oriental de Colombia definida por depósitos de antepaís. Boletín de Geología UIS 29:51-60.
Bayona, G., Jaramillo, C., Rueda, M., & Reyes-Harker, A. 2007. Paleocene-middle Miocene flexural-margin migration of the nonmarine Llanos foreland basin of Colombia. CT&F.
Harrington, G. & Jaramillo, C. 2007. Paratropical floral extinction in the Late Palaeocene-Early Eocene. Journal of Geology 164:323-332.
Hawkins, B.A., Felizola Diniz-Filho, J.A., Jaramillo, C.A. & Soeller, S.A. 2007. Climate, niche conservatism, and the global bird diversity gradient. American Naturalist 170, Supplement, S16-S27.
Morón, S.; Montes, C.; Jaramillo, C.; Bayona, C. & Sánchez, C. 2007. Ciclicidad en la Formación Cerrejón. Boletín de Geología UIS 29: 21-30.

Report by N. Malumián (Chairman), C. Náñez (Secretary)

Annual Report 2006 of South American Regional Committee on Paleogene Stratigraphy


The Regional Committee is preparing a section to be hosted in the web page of the National Geological Survey of Argentina, to include news on the Paleogene, particularly from South America, such as publications, meetings, stratigraphic lexica, and other topics of interest.
The Regional Committee is sponsoring the Fifth Argentinean Ichnologic Meeting and Third Ichnologic Meeting of the Mercosur, to be held on March 28-30 (2007), in Ushuaia, Tierra del Fuego, Argentina, organized by the Laboratorio de Geología Andina (Chairman: Dr. E. Olivero). A three-day post-meeting field trip is planned to visit the marine Paleogene outcrops on the Atlantic Coast of the Island, one of the few Paleogene localities exposed at southern high latitudes.
Although a complete list of publications is expected to be included in the web page of the Regional Committee, an important contribution to the knowledge of the Paleogene of Ecuador has been reported by Ing. Martha Ordóñez (Petroproducción, Guayaquil): a book entitled “Micropaleontología Ecuatoriana”, by M. Ordóñez, N. Jiménez, J. Suárez and others (2006, 634pp.), published by Petroproducción and Centro de Investigaciones Geológicas Guayaquil. The book includes biostratigraphic and paleoecologic information on the Paleogene of several basins from Ecuador, their stratigraphy, biozonations and microfossils, and a illustrated catalogue of index species (foraminifera, radiolaria, nannofossils and palynomorphs, and microfossils in thin sections).

Report by N. Malumián, Chairman and C. Nañez, Secretary.



Annual Report 2005 of South American Regional Committee on Paleogene Stratigraphy


Main subjects of research on the Paleogene of South America in 2004-2005 and publications are mentioned below. Reports by S. Ballent, S. Casadío, C. Chacaltana B., C. del Río, T. de Vrie, R. Guerstein, C. Jaramillo, R. Madden, S. Nielsen, M. Novara, E. Olivero, M. Ordóñez, M. Quattrocchio, R. Scasso, V. Volkheimer and G. Vucetich, are acknowledged.

Chairman: N. Malumián
Secretary: C. Náñez

ARGENTINA

CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS (CADIC) – CONICET. Ushuaia, Tierra del Fuego. Report by Eduardo B. Olivero <emolivero@ciudad.com.ar>
Published papers:
Malumián, N. and Olivero, E.B., 2005. El Oligoceno-Plioceno marino del río Irigoyen, costa atlántica de Tierra del Fuego, Argentina: Una conexión atlántica-pacífica. Revista Geológica de Chile, 32 (1): 117-129.
Submitted and in press:
Malumián, N., López C., M.I., Náñez, C. and Olivero, E.B., 2004. Bioerosion patterns in benthic foraminiferal tests through the Cretaceous and Cenozoic of Patagonia and Tierra del Fuego, Argentina. SEPM Special Publication.
Malumián, N. and Olivero, E.B., 2004. Shallow-water late middle Eocene crinoids from Tierra del Fuego: New southern record of a retrograde community structure. Special Vol. Scientia Marina, Barcelona.
Malumián, N. and Olivero, E.B., 2005. El Grupo Cabo Domingo, Tierra del Fuego, Argentina: Bioestratigrafía, paleoambientes y acontecimientos del Eoceno-Mioceno marino. Revista de la Asociación Geológica Argentina.
Olivero, E.B. and Malumián, N., 2005. Stratigraphy. En: Geology and Geophysics of Isla Grande de Tierra del Fuego. Field-Trip Guide Booklet. Bolletino de Geofisica Teorica ed Applicata, 46.
Ponce, J.J., Olivero, E.B., Martinioni, D.R., and López C., M.I., 2004. Sustained and episodic gravity flow deposits and related bioturbation patterns in Paleogene turbidites (Tierra del Fuego, Argentina). SEPM Special Publication.
Meetings and abstracts:
Ghiglione, M.C., Ramos V.A. and Olivero E.B., 2004. Cronology of orogenic front propagation in the Fuegian Fold.-Thrust belt. Extended Abstracts, Bolletino di Geofisica teorica ed applicata 45: 59-62.
Olivero, E.B., 2004. Field Trip Guide: Stratigraphy. In Geology and Geophysics of Isla Grande de Tierra del Fuego, GeoSur 2004. OGS.
Doctoral thesis in preparation:
Noelia Carmona. Laboratorio de Geología Andina, CADIC. E. B. Olivero Co-Director. Subject: Icnología de depósitos marinos del Cenozoico de Patagonia y Tierra del Fuego.
Pablo Torres Carbonell. Laboratorio de Geología Andina, CADIC. E. B. Olivero Director. Subject: Estructura y sedimentación del Paleógeno de la Isla Grande de Tierra del Fuego.
Funded projects:
PIP 5100. CONICET: Análisis de sistemas turbidíticos sintectónicos del Cenozoico de Tierra del Fuego: Sedimentología; micropaleontología; icnología y modelos depositacionales. Leaders: E.B. Olivero and N. Malumián. 2005-2006.

CENTRO REGIONAL DE INVESTIGACIONES CIENTIFICAS Y TECNICAS, Mendoza.
Wolfgang Volkheimer <volkheim@lab.cricyt.edu.ar> is leading the project PIP 5222, funded by Conicet on “Cambios paleoclimáticos y paleoambientales vinculados con la biodiversidad: Palinoestratigrafía y tafonomía de formaciones del Mesozoico y Cenozoico del norte y oeste de Argentina”. This project includes the study of the palynomorphs from the Paleogene of the Salta Group (northwestern Argentina): systematics, biostratigraphy and paleoenvironments. See also publications and direction of doctoral thesis in the report of the Universidad de Salta.

MUSEO ARGENTINO DE CIENCIAS NATURALES “B. RIVADAVIA”, Buenos Aires
Claudia del Río <jdeo@uolsinectis.com.ar> reports two research projects on the Paleogene:
PIP 2144 “The origin and composition of the invertebrate fossils from the marine Paleocene of Patagonia and their relationship with neighbouring regions” under her leadership and funded by Conicet, Argentina.
IGCP Project #522 "Dawn of the Danian (65-61MA): Post K-P Boundary Austral Biotic Survivorship and Recovery in a "Brave New World". Leaders: J. Stilwell and C. del Río. Approved in Last February.
Meeting and abstract:
del Río, C., Martínez, S., Concheyro, A. and Stilwell, J., 2004 - Macro y nanofosiles de Cerros Bayos (Daniano), Cuenca Neuquina, Provincia de La Pampa, Argentina. Resúmenes X Reunión Argentina de Sedimentología. Contribuciones Simposio K/T :190.

SERVICIO GEOLÓGICO MINERO ARGENTINO, Buenos Aires.
The micropaleontological lab continued studying the biostratigraphy and paleoecology of the Paleogene of Patagonia and the Argentine Continental Shelf, based on microfossils, mainly foraminifera. The research is in part carried out in collaboration with colleagues of the CADIC, Ushuaia, Tierra del Fuego (see also publications under CADIC).
Published paper:
Caramés, A., Malumián, N. and Náñez, C., 2004. Foraminíferos del Paleogeno del Pozo Península Valdés (PV. es-1), Patagonia Septentrional, Argentina. Ameghiniana 41(3): 461-474.
Submitted and in press:
Jannou, G., Radiolarios de las Formaciones Punta Noguera y Punta Torcida, Paleogeno de la cuenca Austral, Tierra del Fuego, Argentina. Ameghiniana.
Caramés, A. and Malumián, N. La familia Rzehakinidae (Foraminifera) en el Cretácico Superior y Paleogeno de la cuenca Austral y la plataforma continental atlántica adyacente, Argentina. Ameghiniana.
Meetings and abstracts:
Náñez, C. and Malumián, N., 2004. Distribution of conspicuous or endemic benthic foraminifera across the K/P boundary in Patagonia. X Reunión Argentina de Sedimentología, Resúmenes. Contribuciones Simposio K/T:193-94.
Parras, A., Casadío, S., Náñez, C., Concheyro, A. and Griffin, M., 2004. The Cretaceous/Paleogene boundary in the Neuquén Basin, northern Argentina, Argentina. X Reunión Argentina de Sedimentología, Resúmenes. Contribuciones Simposio K/T: 196-197.

UNIVERSIDAD NACIONAL DE LA PAMPA, Santa Rosa.
Silvio Casadío <sacasadio@hotmail.com> reports on the research carried out by colleagues of the Universidad Nacional de La Pampa, on the biostratigraphy of the Paleogene of Patagonia, and paleoecology, taphonomy and sistematics of several fossil groups, such as mollusks and crustacea. Part of the research is in collaboration with colleagues of the Universidad Nacional del Sur (see also publications mentioned for this latter institution).
Published papers:
Casadío, S., De Angeli, A., Feldmann, R. M., Garassino, A., Hetler, J. L., Parras, A. and Schweitzer, C. E., 2004. New decapod crustaceans (Thalassinidea, Brachyura) from the late Oligocene of Patagonia, Argentina. Annals of the Carnegie Museum of Natural History, 73(2):25-47.
Parras, A. and Casadío, S., 2005. Stratigraphy, taphonomy and sequence stratigraphic significance of oyster-dominated concentrations from the San Julián Formation, Oligocene of Patagonia, Argentina. Palaeogeography, Palaeoclimatology, Palaeoecology, 217: 47-66.
Parma, S. G. and Casadío, S. Maastrichtian-Danian echinoids from northern Patagonia, Argentina. Journal of Paleontology, 79(6): 1072-1087.
Books:
Calmels, P.A. and Casadío, S., 2005. Compilación Geológica de la Provincia de La Pampa. Ediciones Amerindia, 322 pp.
Submitted and in press:
Casadío, S., Feldmann, R., Parras, A., Schweitzer, C. Miocene fossil decapoda (Crustacea: Brachyura) from Patagonia, Argentina and their paleoecological setting. Bulletin of the Carnegie Museum of Natural History.
Casadío S., Griffin, M. and Parras, A. Plicatula and Camptonectes (Bivalvia: Pteriomorphia) from the late Maastrichtian of Northern Patagonia: Palaeobiogeographic implications. Cretaceous Research.
Griffin, M., Casadío, S. and Parras, A. Maastrichtian and Danian species of Turkostreini (Ostreidae, Crassostreinae) from the Neuquén Basin, Argentina. Ameghiniana.
Mauna, C., Casadío, S., Parras, A. and Pascual, M. Frequency and Distribution of Lithophaga (Mytilidae) Perforations in Recent and Fossil Oysters: Taphonomic and Paleobiological Implications. Ameghiniana.
Melchor, R. N. and Casadío, S. Descripción geológica de la Hoja 3766-III "La Reforma" (1:250.000), provincia de La Pampa. Servicio Geológico Minero Argentino, Boletín 295:56 p.
Parras, A. and Casadío, S. The oyster Crassostrea? hatcheri (Ortmann, 1897), a physical ecosystem engineer from the upper Oligocene-lower Miocene of Patagonia, southern Argentina. Palaios.
Meetings and Abstracts:
Casadio, S., Griffin, M., Parras, A. and Håkansson, E., 2004. Boring and encrusting organisms on species of Pycnodonte (Ostreina, Gryphaeidae) through the Cretaceous-Paleogene boundary in Patagonia, Argentina. Geological Society of America, Abstract with Programs, p. 379.
Casadío, S., Griffin, M., Parras, A., Concheyro, A., Feldmann, R., Gasparini, Z. and Parma, S.G., 2004. Biotic and environmental changes across the Cretaceous/Paleogene boundary in Patagonia. 10 Reunión Argentina de Sedimentología :187-188.
Griffin, M., Casadío,S., Parras, A., Feldmann, R. and Schweitzer, C., 2004. 87Sr/86Sr early Oligocene age for the Río Foyel Formation, Río Negro, Argentina. Reunión Anual de Comunicaciones de la Asociación Paleontológica Argentina, Ameghiniana, 13R.
Parras, A., Casadio, S., Feldmann, R., Griffin, M and Schweitzer, C., 2004. Age and paleogeography of the marine transgressions at the Paleogene-Neogene boundary in Patagonia, Southern Argentina. Geological Society of America, Abstract with Programs, p. 364.
Parras, A., Casadío, S., Náñez, C., Concheyro, A. and Griffin, M., 2004. The Cretaceous/Paleogene boundary in the Neuquén basin, northern Patagonia, Argentina. X Reunión Argentina de Sedimentología:196-197.
Parras, A., Plaá, R., Casadío, S. and Griffin, M., 2004. Los “biohermas ostreros” de la Formación Roca (Daniano), en la provincia de La Pampa: una nueva interpretación. Reunión Anual de Comunicaciones de la Asociación Paleontológica Argentina, Ameghiniana:17R-18R.

UNIVERSIDAD NACIONAL DEL SUR, Bahía Blanca.
Raquel Guerstein <gmguerst@criba.edu.ar> reports on the activities and publications of her team, mainly on biostratigraphy and paleoenvironments based on palynomorphs and dinoflagellate cysts.
Published papers:
Daners, G., Guerstein R., Guler M.V. and Veroslavsky, G., 2004. Las transgresiones del Maastrichtiense-Daniense y Eoceno medio en la cuenca Punta del Este y su correlación regional basada en dinoflagelados. 4º Congreso Uruguayo de Geología-II Reunión de Geología Ambiental y Ordenamiento Territorial del Mercosur, SUG, Actas, Montevideo.
Guerstein, G. R., Guler, M. V. and Casadío, S., 2005. Palynostratigraphy and Palaeoenvironments of the Oligocene/Miocene boundary from the Centinela Formation, southwestern Argentina. Beaudoin A.B. y Head M.J. (eds.) The Palynology and Micropalaeontology of Boundaries, Geological Society Special Publication. Special Publication, 230:325-343.
In press:
Guerstein, G.R., Junciel, G.L., Guler, M.V. and Daners, G. Diconodinium lurense sp. nov., a late Maastrichtian to Danian dinoflagellate cyst from Southwest Atlantic basins. Ameghiniana.
Meetings and abstracts:
Guerstein, G.R., Prámparo, M.B, Junciel, G.L., Guler, M.V. and Daners, G., 2004. Bioestratigrafía basada en dinoflagelados del Maastrichtiano-Daniano del Atlántico Sudoccidental. X Reunión Argentina de Sedimentología, Simposio Límite K/T de Argentina. Resúmenes:190-192.Mirta Quattrocchio <mquattro@criba.edu.ar> is leading a project on the sedimentology and palynology of the Paleocene to Miocene of southernmost South America. Studies are focused on the Nirihuau Basin and the Austral Basin, and are sponsored by Repsol-YPF and Enap (Chilean Oil Company). Marcos Asensio Sabio and Marcelo Martínez participate in this project. Marcelo was in Mexico during May 2004 to study dinoflagellate cysts with Javier Helenes Escamilla. Mirta also collaborates with colleagues of the Universidad de Salta (see below).

UNIVERSIDAD NACIONAL DE SALTA, FACULTAD DE CIENCIAS NATURALES, GEOLOGÍA. Salta.Report by Martín Novara <martin_novara@mixmail.com>
Published papers:
del Papa, C., Hongn, F., Petrinovic, I. and Domínguez, R., 2004. Evidencias de deformación pre - miocena media asociada al antepaís andino en la Cordillera Oriental (24° 35´S-6° 12´O). Revista de la Asociación Geológica Argentina, 59(3):506-509.
Marquillas R., del Papa, C. and Sabino, I.F., 2005. Sedimentary aspects and paleoenvironmental evolution of a rift basin: Salta Group (Cretaceous-Paleogene), northwestern Argentina. International Journal of Earth Sciences, 94 (1):94-113.
Submitted and in press:
Marquillas, R. Hoja Geológica Nº 2566 IV "Metán", Capítulo: Subgrupo Balbuena (Cretácico Superior-Terciario Inferior). SEGEMAR, Dirección Nacional del Servicio Geológico Buenos Aires.
Quattrocchio, M., Volkheimer, W., Marquillas, R. and Salfity, J.A. Palynostratigraphy, palaeobiogeography and evolutionary significance of the Late Senonian and Early Palaeogene palynofloras of the Salta Group, northern Argentina. Revista Española de Micropaleontología, 37 (2005).
Volkheimer, W., Novara, M., Narváez, P. and Marquillas, R. Palynology of the Tunal Formation (Danian) at its type locality, Quebrada El Chorro (Salta, Argentina). Paleoenvironmental significance. Ameghiniana.
Meetings and abstracts:
Heredia, J.E. and Marquillas, R.A., 2004. La Formación Tranquitas (Mioceno Medio a Superior) en el flanco occidental de la sierra de Aguaragüe, nordeste de la provincia de Salta. X Reunión Argentina de Sedimentología. Resúmenes:80-82.
Marquillas, R.A., Sabino, I.F., del Papa, C.E., Théry, J.M., Matthews, S.J. and Heredia, J.E., 2004. Estado de la búsqueda del límite K/T en la cuenca del Grupo Salta. X Reunión Argentina de Sedimentología, Simposio El Límite K/T en Argentina. Resúmenes:192-193.
Novara, M.G. and Marquillas, R.A., 2004. Litología y Contactos de la Formación Tunal (Daniano) en la Quebrada El Chorro, Departamento La Viña, Salta. X Reunión Argentina de Sedimentología. Resúmenes:116-118.
Novara, M. and Marquillas, R., 2005. La Formación Tunal (Daniano) en el valle de Lerma, provincia de Salta, Argentina. XVI Congreso Geológico Argentino.
Sabino, I.F., Sial, A., Ferreira, V., Marquillas, R.A. and del Papa, C.E. Características estratigráficas e isotópicas del límite K-T en las cuencas de Pernambuco-Paraíba (Brasil) y Salta (Argentina). X Congresso Brasileiro de Geoquímica–Simpósio de Geoquímica dos Países do Melcosul. Pernambuco Brasil (Oct-Nov/2005).
Salfity, J.A., Monaldi, C.R., Marquillas, R.A. and Alvarez, L., Geología de la Puna Argentina: Frontera de Exploración de Hidrocarburos. VI Congreso de Exploración y Desarrollo de Hidrocarburos, Simposio “Fronteras Exploratorias”. Mar del Plata (Nov/2005).
Doctoral thesis in preparation:
Martín G. Novara. “La Formación Tunal (Daniano) Cuenca del Grupo Salta, Argentina. Relación con la Formación Olmedo”. Universidad Nacional de Salta. Director: R. Marquillas, co-director: C. del Papa.
Jorge E. Heredia. “Estratigrafía de los depósitos basales de la cuenca de antepaís en las Sierras Subandinas Septentrionales, provincia de Salta”. Universidad Nacional de Salta. Director R. Marquillas, co-director: C. del Papa.
Paula L. Narváez. “Palinoestratigrafía, paleoambientes y cambios climáticos en la cuenca del Grupo Salta (Neocomiano-Eoceno). Relación con otras unidades del Noroeste argentino”. Universidad Nacional de Cuyo. Director: W. Volkheimer, co-director: R. Marquillas.
Funded projects:
Project PICT 12419 FONCyT-ANPCyT: “Marco geológico, geoquímico, isotópico y dataciones de los depósitos de la ingresión maastrichtiano-daniana del noroeste argentino”. Leader: R. Marquillas. 2004/2007.
Project CIUNSa 1220, Código 20-D223 (Consejo de Investigación - Universidad Nacional de Salta): “Marco geológico, geoquímico, isotópico y dataciones de los depósitos de la ingresión maastrichtiano-daniana del noroeste argentino”. Leader: R. Marquillas.
Project CIUNSa 876/4, Código 20-D215 (Consejo de Investigación - Universidad Nacional de Salta): "Grupo Salta (Cretácico-Paleógeno): Sedimentología, Geoquímica y Edad. Prospección del Límite Cretácico-Terciario y de Eventos de Impacto. Leader: R. Marquillas.

UNIVERSIDAD DE BUENOS AIRES, Buenos Aires
Roberto Scasso <rscasso@gl.fcen.uba.ar> reports the publications carried out by himself and colleagues. Roberto organized a Symposium on the K-T boundary in Argentina, held during the X Argentine Meeting of Sedimentology (2004), where ca. 12 contributions were presented.
Published papers:
Olivero, E.B., Buatois, L.A. and Scasso, R.A., 2004. Paradictyodora Antarctica: a new complex vertical spreite trace fossil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego, Argentina. Journal of Paleontology 78(4):783-789.
Ruiz, L., Scasso, R.A., Aberhan, M.A., Kiessling, W., Bande, A., Medina, F., Weidemeyer, S., La Formación Lefipán en el Valle Medio del Río Chubut: ambientes sedimentarios y su relación con la tectónica del Cretácico Tardío-Paleoceno. XVI Congreso Geológico Argentino.
Scasso, R.A., Concheyro A., Kiessling, W., Aberhan, M, Hecht, L., Medina, F.A., Tagle, R., 2005. A tsunami deposit at the Cretaceous/Paleogene boundary in the Neuquén Basin of Argentina. Cretaceous Research 26: 283-297.
In press:
Kiessling, W., Aragón, E., Scasso, R.A., Aberhan, M., Kriwet, J., Medina, F., and Fracchia, D. Massive corals in Paleocene siliciclastic sediments of Chubut (Patagonia, Argentina). Facies.
Meetings and abstracts:
Ruiz, L. and Scasso, R.A., 2004. Análisis paleoambiental de la Formación Lefipán en el entorno del límite K/T de la Provincia de Chubut. X Reunión Argentina de Sedimentología.
Scasso, R.A., Concheyro, A., Aberhan, M., Kiessling, W., Kriwet and Medina, 2004. Depósitos de Tsunami en el Límite K-T de Neuquén. X Reunión Argentina de Sedimentología.
Scasso, R.A., Kiessling, W., Aberhan, M., Medina, F.A. and Ruiz, L., 2004. Villains at the Cretaceous-Tertiary boundary in Neuquén Basin, Argentina. ICHNIA, First International Congress on Ichnology, Abstract:74-75. Trelew, Chubut.
Weidemeyer, S., Aberhan, M., Kieslling, W., Scholz, H., Scasso, R.A. and Medina, F., 2004. Molluscs at the Cretaceous-Tertiary boundary in Argentina: Ecological selectivity in extinction and recovery in southern high latitudes. Poster and Abstract, 32° International Geological Congress, Florence, Italy.

UNIVERSIDAD NACIONAL DE LA PLATA y MUSEO, VERTEBRATE PÀLEONTOLOGY, La Plata.
Guiomar Vucetich <vucetich@fcnym.unlp.edu.ar> reports the papers and activities by herself and colleagues (mainly Francisco Goin <fgoin@fcnym.unlp.edu.ar> and Guillermo López) on the vertebrates, stratigraphy, paleoenvironments and paleoclimates of the continental Paleogene of South America. Rick Madden <rick_madden@bass.duhs.duke.edu> also report results of his research in collaboration with colleagues of the Museo de La Plata and Museo de Ciencias Naturales B. Rivadavia (Buenos Aires), among others. This team organized a Symposium to be held during the XVI Congreso Geológico Argentino, where they will present the results of their research on the Sarmiento Fm. in Gran Barranca. They are also expecting for the publication of their book on Gran Barranca in the near future.
Publications:
Cladera, G., Ruigomez, E., Ortiz Jaureguizar, E., Bond, M. and López, G., 2004. Tafonomía de la Gran Hondonada (Formación Sarmiento, Edad-mamífero Mustersense, Eoceno Medio) Chubut, Argentina. Ameghiniana 41(3):315-330.
Goin, F. J., Pascual, R., Koenigswald, W.V., Woodburne, M.O., Case, J., A., Reguero, M. and Vizcaíno, S. F. First Gondwanatherian Mammal from Antarctica. In: Geology of the James Ross Basin. Geological Society of London, Special Volume, Londres.
Goin, F.J., Vieytes E.C., Vucetich M.G., Carlini A.A. and Bond, M., 2004. Enigmatic Mammal from the Paleogene of Perú. En The Paleogene Mammalian Fauna of Santa Rosa, Amazonian Peru. Natural Histoy Museum of Los Angeles County, Science Series, n°40:145-154.
Goin, F.J. and A.M. Candela, 2004. New Paleogene marsupials from the Amazonian basin, Southeastern Perú. Pp. 15-60 In: K.E. Campbell Jr. (Ed.), The Paleogene Mammalian Fauna of Santa Rosa, Amazonian Perú. Natural History Museum of Los Angeles County, Science Series 40, 144 pp.
Goin, F.J., Vieytes, E.C., Vucetich, M.G., Carlini, A.A. and Bond, M., 2004. Enigmatic Mammal from the Paleogene of Perú. Pp. 145-153. In: K. E. Campbell Jr. (Ed.), The Paleogene Mammalian Fauna of Santa Rosa, Amazonian Perú. Natural History Museum of Los Angeles County, Science Series 40, Los Angeles, 144 pp.
Kohn, M.J., Josef, J.A., Madden, R.H., Kay, R., Vucetich, G. and Carlini, A.A., 2004. Climate stability across the Eocene-Oligocene transition, southern Argentina. Geology 32(7):621-624.
Tejedor, M. F., Czaplewski, N. Goin, F.J., and Aragón, E. Oldest South American Bats. Journal of Vertebrate Paleontology.
Presented in the XVI Congreso Geológico Argentino, September 2005, La Plata.
Bellosi, E. and González, M., Paleosuelos de la Formación Sarmiento en Gran Barranca (Chubut, Argentina).
Bellosi, E.S, and Madden, R.H., Estratigrafía física preliminar de las secuencias piroclástica terrestres de la Formación Sarmiento (Eoceno-Mioceno) en la Gran Barranca, Chubut.
Carlini, A.A., Madden, R.H., Vucetich, M.G., Bond, M., López, G., Reguero, M. and Scarano, A., Mammalian biostratigraphy and biochronology at Gran Barranca: the standard reference section for the continental middle Cenozoic of South America.
López, G., Bond, M., Reguero, M., Gelfo, J. and Kramarz, A., Los ungulados del Eoceno-Oligoceno de la Gran Barranca, Chubut.
Madden, R.H., Bellosi, E., Carlini, A.A., Heizler, M., Vilas, J.J., Re, G.H., Kay, R.F. and Vucetich, M.G., Geochronology of the Sarmiento Formation at Gran Barranca and elsewhere in Patagonia: calibrating middle Cenozoic mammal evolution in South America
Madden, R.H., Carlini, A.A., Vucetich, M.G. and Kay, R. The Paleontology of Gran Barranca: Evolution and Environmental change through the Middle Cenozoic of Patagonia.
Re, G.H., Madden, R.H., Heizler, M., Vilas, J.F. and Rodriguez, M.E.,Polaridad magnética de las sedimentitas de la Formación Sarmiento (Gran Barranca del lago Colhue Huapi, Chubut, Argentina).
Vucetich, M.G., Vieytes, E.C., Kramarz, A. and Carlini, A.. Los roedores caviomorfos de Gran Barranca: aportes bioestratigráficos y paleoambientales.
Books:
Oliveira, E. V. and Goin, F. J. Marsupiais fósseis do Paleoceno de Itaboraí: Origem, Irradiação e História Biogeografica. Capítulo 2 en: Cáceres, N.C. y E.L.A. Monteiro Filho (eds.), Os marsupiais do Brasil: biologia, ecologia e evoluçao. Marsupiais do Brasil. Ed. Campo Grande, UNIDERP/UFMS 700 p.
Submitted papers:
Goin, F.J., Ubilla, M.and Perea, D. A new bonapartheriform marsupial from the Oligocene of Uruguay, and the origins of the Argyrolagoidea. Geobios.
Goin, F.J., Abello, A., Bellosi, E., Kay, R., Madden, R. and Carlini, A.A. Los Metatheria sudamericanos de comienzos del Neógeno (Mioceno temprano, Edad-mamífero Colhuehuapense). Parte 1: Introducción, Didelphimorphia y Sparassodonta. Ameghiniana.
Goin, F.J. A review of the Caroloameghiniidae, Paleogene South American “primate-like” marsupials (Peradectia). Palaeontographica.
Goin, F.J., Reguero, M.A., Santillana, S.N., Marenssi, S.A. and Moly, J.J. A new microbiotheriid marsupial from Antarctica.
Reguero, M., Croft, D., López, G. and Alonso, R. Eocene Archaeohyracids (Mammalia: Notoungulata: Hegetotheria) from the Puna, Northwest of Argentina. Journal South American Earth Science.
Funded projects:
2005- CONICET, PIP 5621, Leader: F. Goin. Subject: estudios sobre la diversidad paleógena de los marsupiales patagónicos (Período 2005-2006).
Abstracts:
Bond, M., López, G., Madden, R., Reguero, M. and Scarano, A., 2004. Los Ungulados no mienten. XX Jornadas Argentinas de Paleontología de Vertebrados (La Plata). Ameghiniana 41(4) suplemento:36R.
Carlini, A., Bond, M., López, G., Reguero, M., Scarano, A. and Madden, R., 2004. Mammalian biostratigraphy and biochronology at Gran Barranca: the standard reference section for the continental Middle Cenozoic of South America. Journal of Vertebrate Paleontology 24, Suplement to Number 3:43 A. Denver, Colorado, 2004.
Deraco, M. V., Ribeiro, A. M. and López, G., 2004. Colpodon (Leontiniidae, Notoungulata) da localidade de Sacanana, Chubut, Idade-mamífero Colhuehuapiense: um estudo preliminar de dentição decídua. Reunión Anual de Comunicaciones de la Asociación Paleontológica Argentina. Ameghiniana 41 (4) suplemento: 10 R.
Gelfo, J. N., López, G. and Bond M., 2004. Preliminary analysis of a large Didolodontidae (Mammalia) from the Paleocene of Patagonia, Argentina. Reunión Anual de Comunicaciones de la Asociación Paleontológica Argentina. Ameghiniana 41(4) suplemento:13 R.
Goin, F., Pascual, R., Tejedor, M., Woodburne, M., Case, J., Bond, M., Reguero, M., López, G., Cione, A., Sauthier Udrizar, D., Balarino, L., Scasso, R., Medina, F. and Ubaldón, M., 2005. El mamífero cenozoico más antiguo registrado en América del Sur (Paleoceno, Chubut, Argentina). Boletin de Resumos II Congreso Latinoamericano de Paleontología de Vertebrados 125-126. Río de Janeiro.
López, G., 2005. The mammals of Divisadero Largo Formation (Mendoza, Argentina) and their importance for Eocene biostratigraphy of Southern South America. Boletin de Resumos II Congreso Latinoamericano de Paleontología de Vertebrados: 156-157. Río de Janeiro.
Reguero, M., López, G., Bond, M. and Madden R. H., 2004. Faunas de Edad Tinguiririquense (Eoceno tardío-Oligoceno temprano) en Patagonia. Reunión Anual de Comunicaciones de la Asociación Paleontológica Argentina. Ameghiniana 41(4) suplemento: 24 R.
Vucetich, M.G., Carlini, A.A., Madden, R.H. and Kay, R.F., 2004. New discoveries among the oldest rodents in South America. How old and how primitive?. 64th Annual Meeting of the Society of Vertebrate Paleontology. Denver.
Vucetich, M.G., Carlini, A.A., Madden, R.H. Kay, R.F and Vieytes, E.C., 2004. Nuevos hallazgos entre los más antiguos roedores de América del Sur: una dispersión post-transición Eoceno-Oligoceno. Reunión Anual de Comunicaciones APA, Diamante, Entre Ríos. Ameghiniana 41(4, suplemento):24R-25R.

UNIVERSIDAD NACIONAL DE LA PLATA, INVERTEBRATE PALEONTOLOGY, La Plata.
Sara Ballent <sballent@fcnym.unlp.edu.ar> reports a publication on Cenozoic ostracods:
Whatley, R., Ballent, S. and Szczechura, J. in press. Antarctic Tertiary Progonocytheridae: The last refuge of Majungaella, the survivor of a long lineage, a geographical and physiological migration from low to high latitudes. Palaeogeography, Palaeoclimatology, Palaeoecology (available online).

BRAZIL

The First Simposium on the Tertiary of Brazil will be held in the city of Sierra Negra (SP), 2-6 April 2006. For more information see: http://www.rc.unesp.br/igce/simpcret/simpcretaceo.html

COLOMBIA

Carlos Jaramillo (e-mail: jaramilloc@si.edu) reports the following papers, abstracts and thesis:
Published Papers:
Bayona, G., Cortés, M., Jaramillo, C., and Llinás, R., 2003. The Tertiary Fusagasugá succession: a record of the complex Latest Cretaceous-pre-Miocene deformation between the Magdalena Valley and Sabana de Bogotá areas. VIII Simposio Bolivariano de Cuencas Subandinas Exploración Petrolera en las Cuencas Subandinas, Cartagena, pp 180-193.
Davis, Ch.C., Webb, C.O., Wurdack, J.K., Jaramillo, C.A. and Donoghue, M.J., 2005. Explosive radiation of Malpighiales supports a mid-Cretaceous origin of Modern Tropical Rain Forests. American Naturalist 165: E36-65.
Jaramillo, C., 2002. Response of tropical vegetation to Paleogene warming. Paleobiology, 28:222-243.
Jaramillo, C. and Dilcher, D.L., 2000. Microfloral diversity patterns of the late Paleocene-Eocene interval in Colombia, northern South America. Geology 28:815-818.
Jaramillo, C. and Dilcher, D.L., 2001. Middle Paleogene Palynology of Central Colombia, South America: A Study of Pollen and Spores from Tropical Latitudes. Palaeontographica B 285:87-213.
Oboh-Ikuenobe, F. , Obi, C., and Jaramillo, C., 2005. Lithofacies, Palynofacies, and Sequence Stratigraphy of Paleogene Strata in Southeastern Nigeria. Journal of African Earth Science 41: 79-101.
Pardo, A, and Jaramillo, C., 2002. New Palynostratigraphical data of NW South America Paleocene-Eocene of the Middle Magdalena Valley, Colombia. International Journal of tropical Geology, Geography and Ecology 26:1-10.
Pardo, A., Jaramillo, C. and Oboh, F., 2003. Paleogene palynostratigraphy of the Eastern Middle Magdalena Valley, Colombia. Palynology, 27: 155-178.
Submitted papers:
Aristizabal, J.J., Sanchez. J. , Paz, M.G., Muñoz, J, Villamil, T., Jaramillo, C., Rueda, R., Mesa, A. GOIS A method for the geological control of exploratory wells in complex frontier areas: the Gibraltar case, northern llanos foothills of Colombia, AAPG Bulletin.
Bayona, G. and Jaramillo, C.A. Resultados paleomagnéticos en unidades del Paleogeno de Colombia y oeste de Venezuela y posibles usos para caracterización de contactos. Geología Colombiana.
Jaramillo, C., Muñoz, F., Cogollo, M. and Parra, F., 2005. Quantitative Biostratigraphy for the Paleocene of the Llanos Foothills, Colombia: Improving Palynological Resolution for Oil Exploration. TMS Special Publication.
Meetings and Abstracts:
Bayona, G., Jaramillo, C., Rueda, M., Pardo, A., Christie A., and Hernández, G., 2004. Important Paleotectonic and Chronostratigraphic Considerations of the Late Paleocene in the Northernmost Andes as Constrained by Paleocene Rocks in the Cerrejón Coal Mine, Guajira, Colombia. III Convención Técnica ACGGP
Bloch, J.I., Cadena, E. A., Wing, S.L., Jaramillo, C., 2005. Paleocene vertebrates from the Cerrejón Formation, Guajira peninsula, Northeastern Colombia. Society of Vertebrate Paleontologist Annual Meeting.
Herrera, F., Wing, S., and Jaramillo, C. A., 2005. Warm (Not Hot) Tropics During the Late Paleocene: First Continental Evidence. AGU Annual Meeting, San Francisco.
Jaramillo, C., 2004. Campanian to Miocene patterns of plant diversification in the neotropics. VII IOPC. Bariloche, Argentina.
Jaramillo, C., 2004. Paleogene patterns of plant diversification in the Neotropics. Climate and biota of the Early Paleogene: CBEP V. Luxor, Egypt.
Jaramillo, C, Rodríguez, G., Brenac, P., Rueda, M., 2005. Floristic Changes at the PETM in the Neotropics. GSA Annual Meeting, Denver.
Jaramillo, C. and Rueda, M., 2004. Impact of Biostratigraphy on Oil Exploration. III Convención Técnica ACGGP. La inversión en el conocimiento geológico, P4, CDROM, Bogota.
Jaramillo, C., Rueda, M., Parra, F., Rodríguez, G., 2005. Biostratigraphy Breaking Paradigms: The Absence of the Mirador Formation in the Eastern Llanos of Colombia. Geological Problem Solving with Microfossils. Rice University, Houston.
Jaramillo, C.A., Rueda, M.J., Parra, F., Bedoya, G., Gómez, C., Mejia, P., Cadena, E., Herrera, F., Antolinez, H., Florez, P., Santos, C. and Cogollo, M., 2004. Quantitative biostratigraphy for the Tertiary of the Llanos Foothills, Colombia: Improving palynological resolution for oil exploration. XI IPC, Grenada, Spain, Polen 14:189-190.
Mejia, P, Dilcher, D, and Jaramillo, C., 2005. Early Angiosperm Evolution in Tropical Latitudes. AASP 38th Annual Meeting, St. Louis, Missouri.
Montes, C., Bayona, G., Jaramillo, C., Ojeda, G., Molina, M., and Herrera, F., 2005. Uplift of the Sierra Nevada de Santa Marta and Subsidence in the Cesar-Rancheria Valley: Rigid-Beam Pivot Model, 6th International Symposium of Andean Geodynamics, Barcelona, p. 4.
Pardo-Trujillo, A. and Jaramillo, C.A., 2004. Paleocene-Eocene palynology and palynofacies of tropical South America: northeastern Colombia and western Venezuela. XI IPC, Grenada, Spain, Polen 14:191-192.
Parra, F. and Jaramillo, C., 2005. The Cretaceous-Tertiary boundary in tropical latitudes: Understanding the response of tropical vegetation to a major environmental crisis. AASP 38th Annual Meeting, St. Louis, Missouri.
Parra, M., Mora, A., Jaramillo, C., Strecker, M. and Veloza, G., 2005. New stratigraphic data on the initiation of mountain building at the Eastern Front of the Colombian Eastern Cordillera. ISAG Abstracts, Barcelona.
Rueda, M. and Jaramillo, C., 2005. A Palynological Zonation for the Cretaceous - Tertiary of Colombia. Geological Problem Solving with Microfossils. Rice University, Houston.
Solé de Porta, N., Jaramillo, C. and Martín-Algarra, A., 2004. Pantropical Palynomorphs in the Eocene of The Malaguides (Betic Cordillera, Southern Spain).XI IPC, Grenada, Spain, Polen 14:189.
Willumsen, P.S.; Antolinez, H. and Jaramillo, C., 2004. Maastrichtian to early Eocene dinoflagellate cysts of West Africa, Nigeria. XI IPC, Grenada, Spain, Polen 14:414-415.
Wing, S., Herrera, F., and Jaramillo, C.A., 2004. A Paleocene flora from the Cerrejon formation, Guajira Peninsula, northeastern Colombia, International Organization of Paleobotany, Seventh Quatrennial Conference. Bariloche, Argentina. Abstracts:146-147.
Thesis completed under the direction of C. Jaramillo:
2003. Sorangela Cardona, Geology, Universidad Nacional Medellín. Palinología del pozo La arena 1, Golfo de Morrosquillo, Valle Inferior del Magdalena: edad y ambiente de acumulación.
2003. Felipe de la Parra, Geology, Universidad Nacional Bogota. Respuesta de una comunidad vegetal a la crisis del Cretácico-Terciario.
2003. Edwin Cadena, Geology, UIS. Taxonomía de la especie “Trilongicolpites perbonus” en secuencias continentales de Colombia.
2004. Hernán Antolinez, Geology, UIS. Dinoflagelados del intervalo Paleoceno superior-eoceno inferior de Nigeria: Implicaciones paleoclimáticas.
2004. Fabiany Hernandez, Geology, UIS. Paleotemperatura y paleoprecipitación del Paleoceno superior en zonas tropicales usando plantas fósiles de la Formación Cerrejón, Mina de Carbón el Cerrejón, Guajira.
2004. Raul Daza, Undergraduate Geology, Universidad Nacional Bogota. Batometría y vegetación durante el Eoceno medio del ODP (Ocean Drilling Program) 192, sitio 1184, meseta oceánica Ontong Java.
2005. Paola Florez and Carlos Santos, Undergraduate Geology, UIS. Paleosalinidad durante el Eoceno tardío en el oriente y suroriente de Colombia.
2005. Carolina Gómez, Undergraduate Biology, Universidad de Antioquia, Palmas en el Paleoceno superior del valle del río Ranchería (Guajira, Colombia).

CHILE

Sven Nielsen (GeoForschungsZentrum Potsdam, <nielsen@gfz-potsdam.de> ) is studying Eocene gastropods from Chile.

ECUADOR

Martha Ordóñez <marthaleonor5@hotmail.com>, Empresa Nacional del Petróleo de Ecuador (Petroproducción), reports the preparation of a book entitled "Micropaleontología Ecuatoriana", which includes the most relevant research on the micropaleontology of the Paleogene of Ecuador carried out by the colleagues of that institution. The book has been finished and waits to be published. It includes information on several Paleogene units: from the Chongón Colonche Range, the base of the San Eduardo Fm. (Late Paleocene–Early Eocene); from the Santa Elena Península: the Santa Elena Fm. (Maastrichtian–Paleocene) and the Ancón Group (Middle Eocene); from the Manabi Basin, the Upper Guayaquil Fm. (Paleocene), the Zapallo Fm. (middle Middle Eocene – Late Eocene) and the Playa Rica Fm. (Oligocene); from the Coastal Range, the Cerro Fm. (Middle Eocene) and the San Mateo Fm. (middle Middle Eocene–Late Eocene); from the Esmeraldas Basin, the Santiago Fm. (Middle Eocene – Late Eocene), the Zapallo Fm. (Late Eocene) and the Pambil Fm. (middle-late Oligocene); from the Western Range, the Saquisili Fm. (Paleocene–Early Eocene); from the Oriente Basin, the Tiyuyacu Fm. (Eocene) and Orteguaza Fm. (Oligocene). For each unit, foraminifera, calcareous nannoplankton, palynomorphs and radiolaria are listed and the guide species illustrated.

PERU

César Chacaltana B., INGEMMET, Lima <chacalt@ingemmet.gob.pe> reports the following papers on the Paleogene of Peru:
Published as expanded abstracts of the XII Congreso Peruano de Geología. Publicación especial 6 de la Sociedad Geológica del Perú (2004):
Baca, M., Hermoza, W., Bolaños, R., Baby, P., Brusset, S., Ardiles, C. and Carlotto, V. Evolución tectónica y sedimentológica cenozoica de la Cuenca Bagua (Norte del Perú) y sus implicancias geodinámicas.
Carlotto,V., Jaillard, E., Carlier, G., Cárdenas, J. and Cerpa, L. Relación de la cinemática de placas con la evolución de las cuencas sinorogénicas Terciarias de la región sur del Perú.
Chacaltana,C., Rodríguez, R., Cerrón, F. and Morales, M.C. Estratigrafía del Cenozoico inferior en la Cuenca Ayacucho, Andes del Perú Central: revisión litoestratigráfica y evidencia de Nitellopsis (Charophyta).
Sempere, T. and Fornari, M. A. Flores. Síntesis actualizada de la estratigrafía del Cenozoico en el extremo sur del Perú.
Tapia, P. and Narváez, Y. Bioestratigrafía comparada de diatomeas y nanofósiles calcáreos en el Cenozoico marino del Perú.
Velarde,T., Astete, D., Carlier, G., Carlotto, V., Fornari, M., Cerpa, L. and Cárdenas, J. Evidencia estratigráfica de la presencia de dos cuencas cenozoicas en el Sur del Perú: implicancias geodinámicas.
Papers published in: Nuevas contribuciones del IRD y sus contrapartes al conocimiento geológico del sur del Perú. Publicación especial 5, Sociedad Geológica del Perú (2004):
Sempere,T., Acosta, H. and Carlotto, V. Estratigrafía del Mesozoico y Paleógeno al norte de Lago Titicaca.
Orós, Y., Sempere, T., Fornari, M. and Carlotto, V. Estratigrafía y evolución paleógena del área de Llalli–Macari (departamento de Puno). O. La Torre,
Vega, M. and Marocco, R. La sedimentación oligo-miocénica en el antearco del sur del Perú: estudio estratigráfico y sedimentológico de la Formación Camaná.
Papers published in: Volumen especial Nro.6 “Alberto Giesecke Matto”, Sociedad Geológica del Perú (2005):
Carlotto,V., Carlier, G.I., Jaillard, E., Cárdenas, J., Cerpa, L., Flores, T. and La Torre, O. Las cuencas terciarias sinorogénicas en el altiplano y en la cordillera occidental del sur del Perú.
Noble, D., Vidal, C., Angeles, C., Wise, J., Spell, T. and Zanetti, K. Caldera-related ash-flow tuff of Paleocene age in central Perú and its significance for late Cretaceous and Paleocene magmatism, sedimentation and tectonism.
Noble, D., Ríos, A., Vidal, C., Spell, T., Zanetti, K., Ochoa, J. and Cruz, S. Late Cretaceous basalt in the rio Mala valley, central Perú: Evidence for extension and mafic magmatism prior to latest cretaceous-paleocene plutonism and silicic volcanism. Tom DeVrie <TomDeVrie@aol.com> continued studying the invertebrate fossils from the Paleogene of Perú. He transferred part of the “Eocene” Paracas outcrop in southern Peru, south of the Pisco Basin to the latest Oligocene-Miocene Camaná Formation, based on the study of mollusks. The publication is:
DeVries, T.J., 2001. Molluscan evidence for an Oligocene-Miocene age of 'Paracas' beds in southern Peru. Boletín de la Sociedad Geológica del Perú, 92: 57-65.
Tom is also studying the mollusks and the biostratigraphy of the Otuma and Pisco Formations, southern Perú.

Annual Report 2004 of the South American Regional Committee on Paleogene Stratigraphy

Main subjects of research on the Paleogene of South America in 2003-2004 and publications are mentioned below. Reports by V. Barreda, E. Bellosi, L. Bergqvist, H. Duque Caro, R. Marquillas, E. Olivero, S. Casadío, J. Panza, A. Parras, E. Pedrao, M. Quattrocchio, R. Scasso and G. Vucetich, are acknowledged.

Report by N.Malumián, Chairman
and C. Nañez, Secretary.

The Paleogene of Tierra del Fuego Island and the adjacent continental shelf:

The stratigraphy of the Paleogene of Tierra del Fuego has been intensively studied since the last decade, mainly by E. Olivero (CADIC, National Research Council, Ushuaia, Tierra del Fuego) and N. Malumián (Geological Survey of Argentina) and their team. This year the geological map of Tierra del Fuego has been finished and edited, involving an important advance in the knowledge of the geology and stratigraphy of the Paleogene of the island and the adjacent continental shelf. It is a subject of economic significance as the area is explored for oil purposes.
In February 2004, the South American Regional Committee on Paleogene Stratigraphy, E. Olivero, director of CADIC (National Research Council at Ushuaia), colleagues of Pan American Energy Argentina and the present chairman of the ISPS, E. Molina, organized a field trip to visit several localities of the Paleogene of Tierra del Fuego, one of the most complete successions of marine Paleogene in Argentina. Several localities were visited, including sections that encompass the Paleocene/Eocene boundary, Lower/Middle Eocene boundary, Eocene/Oligocene boundary and Oligocene/Miocene boundary.
Some publications on the Paleogene of Tierra del Fuego Island:

Clarke, J.; Olivero, E.B. and Puerta, P., 2003. Report of the earliest fossil penguin from South America an first fossil vertebrate from the Paleogene of Tierra del Fuego, Argentina. American Museum Novitates, Number 3423: 1-18.

Malumián, N.; López C., M.I.; Náñez, C. and Olivero, E.B., 2004. Bioerosion patterns in Cretaceous-Cenozoic benthic foraminiferal tests from Patagonia and Tierra del Fuego Island. First International Congress on Ichnology, Ichnia 2004, April 2004, Trelew, Argentina. Abstract Book: 48-49.

Malumián, N. and Olivero E.B., 2003. Shallow-water late Middle Eocene crinoids from Tierra del Fuego: New southern record of a retrograde community structure. Extended Abstracts of the IBMANT/ANDEEP International Symposium & Workshop. Ed. S. Thatje et al., p. 68-71.

Olivero, E.B.; Buatois, L.A. and Scasso, R.B., 2004. Paradictyodora antarctica: A new complex vertical spreite trace fósil from the Upper Cretaceous-Paleogene of Antarctica and Tierra del Fuego. Journal of Paleontology, 78 (4): 783-789.

Olivero, E.B.; Malumián, N. and Palamarczuk, S., 2003. Estratigrafía del Cretácico superior-Paleoceno del área de bahia Thetis, Andes Fueguinos, Argentina: acontecimientos tectónicos y paleobiológicos. Revista Geológica de Chile 30 (2); 245-263.

Olivero, E.B.; Malumián, N. and Martinioni, D., 2004. Mapa geológico de la Isla Grande de Tierra del Fuego e Isla de los Estados. Escala 1:400.000. Servicio Geológico Minero Argentino y Consejo Nacional de Investigaciones Científicas y Técnicas. In press.

Olivero, E. B.; J. J. Ponce; M. I. López C. and Martinioni, D., 2004. Phymatoderma Granulata from the Oligocene-Miocene of Tierra del Fuego: morphology and ethology. First International Congress on Ichnology, Ichnia 2004, Trelew, abril 2004. Abstract Book: 63.

Ponce, J.J.; Olivero, E. B. and Martinioni, D.R., 2004. Phymatoderma-bearing turbidites (Oligocene, Tierra del Fuego): ichnologic implications for discrimination of sustained and episodic gravity flow deposits. First International Congress on Ichnology, Ichnia 2004, Trelew, abril 2004. Abstract Book: 67-68.

Smalley, R.; Kendrick, E.; Bevis, M.G.; Dalziel I.W.D.; Taylor, F.; Lauria, E.; Barriga, F.; Casassa, G.; Olivero, E.B. and Piana, E.L., 2003. Geodetic determination of relative plate motion and crustal deformation across the Scotia-South America plate boundary in eastern Tierra del Fuego. Geochemistry, Geophysics; Geosystems, 4 (9): 1-19. American Geophysical Union.

Rossello, E.A.; Ottone E.G.; Haring C.E. and Nevistic, V.A., 2004. Significado tectónico y paleoambiental de los niveles carbonosos paleógenos de Estancia La Correntina, Andes Fueguinos, Argentina. Revista de la Asociación Geológica Argentina 59(4).

Doctorate thesis (in prep.):

Ponce, J.J. Análisis Estratigráfico Secuencial del Cenozoico de la Cordillera Fueguina, Tierra del Fuego, Argentina. Directors: E. B. Olivero and C. A. Zavala

Carmona, N.B. Icnología del Oligoceno-Mioceno marino en la región del golfo San Jorge: Reconstrucción de paleoecosistemas asociados a eventos transgresivos. Directors: L. A. Buatois and E. B. Olivero.

The Maastrichtian-Danian transgression of southern South America and the K/P boundary:

Several teams of researchers are working on this matter.
Some publications are:

Baron-Szabo, R.C.; Casadío, S. and Parras, A., 2003. First shallow water scleractinian coral reef from the Danian, northern Patagonia, Argentina. Reunión Anual de Comunicaciones de la Asociación Paleontológica Argentina y Simposio de Tafonomía y Paleoecología (Santa Rosa). Ameghiniana, Suplemento 40(4): 79R. Buenos Aires.

Casadío, S.; Griffin, M.; Parras, A. and Hakansson, E. Boring and encrusting organisms on species of Pycnodonte (Ostreina, Gryphaeidae) through the Cretaceous-Paleogene boundary in Patagonia, Argentina. Geological Society of America Meeting. Colorado, November 2004. Submitted.

Gasparini, Z.; Salgado, L. and Casadío, S., 2003. Maastrichtian plesiosaurs from northern Patagonia. Cretaceous Research, 24:157-170.

Griffin, M.; Casadío, S. and Parras, A. Maastrichtian and Danian Species of Turkostreini (Ostreidae, Crassostreinae) from the Neuquén Basin, Argentina. Ameghiniana. In press.

Guler, M.V.; Guerstein, G.R.; Papú, O.; Casadío, S. and Marenssi, S., 2003. Palinomorfos del Maastrichtiano de la Formación Calafate, sudoeste de Santa Cruz, Argentina. Ameghiniana, 40:88R.

Marenssi, S.; Guler, V.; Casadío, S.; Guerstein, R. and Papú, O. Sedimentology and palynology of the Calafate Formation (Maastrichtian), Austral Basin, Southern Patagonia, Argentina. Cretaceous Research.

Marquillas, R.; del Papa, C.; Sabino, I. and Heredia, J., 2003. Prospección del límite K/T en la cuenca del Noroeste, Argentina. Nota Breve, Revista de la Asociación Geológica Argentina, 58 (2): 171-174.

Náñez, C.; Parras, A.; Hansen, H.J.; Alonso, S. and Lojen, S. A southern, shallow marine, Cretaceous-Paleogene boundary: Bajada del Jagüel section, Neuquén Basin, Argentina. In preparation.

Quattrocchio, M.E. and Sarjeant, W.A.S., 2003. Dinoflagellates from the Chorrillo Chico Formation (Paleocene) of southern Chile. Ameghiniana 40 (2): 129-153.

Scasso, R.A.; Kiessling, W.; Aberhan, M.; Medina, F.A. and Ruiz, L., 2004. Villains at the Cretaceous-Tertiary boundary in Neuquén Basin, Argentina. ICHNIA, First International Congress on Ichnology, Abstract Book, pp. 74-75.

Weidemeyer, S.; Aberhan, M.; Kiessling, W.; Scholz, H.; Scasso, R. and Medina, F. 2004. Molluscs at the Cretaceous-Tertiary boundary in Argentina: ecological selectivity in extinction and recovery in southern high latitudes. - 32nd International Geological Congress, Abstracts, Part 2: 1471-1472; Florence, Italy (International Union of Geological Sciences).

Recently, a symposium on the K/P boundary in Argentina was held during the X Argentine Meeting on Sedimentology (San Luis, 2004).
The abstracts presented to the meeting are:

Barreda, V.; Palamarczuk, S. and Chamberlain, J.A.,jr., 2004. Vegetational disruption at the Cretaceous/Paleogene boundary in Neuquén, Argentina: evidence from spores and pollen. X Reunión Argentina de Sedimentología, San Luis, 2004, Resúmenes. Contribuciones Simposio K/T: 184-185.

Casadío, S.; Griffin, M., Parras, A.; Concheyro, A; Feldmann, R.; Gasparini, Z. and Parma, S.G., 2004. Biotic and Environmental Changes Across the Cretaceous/Paleogene Boundary in Patagonia. X Reunión Argentina de Sedimentología, San Luis, 2004, Resúmenes. Contribuciones Simposio K/T: 187-188.

Caroprese G. and Lorente, M.A., 2004. Evidencias del límite K/T en Venezuela occidental. X Reunión Argentina de Sedimentología, San Luis, 2004, Resúmenes. Contribuciones Simposio K/T: 185-186.

Concheyro, A., 2004. High resolution biostratigraphy. K/P boundary from the northern Patagonia, Argentina. X Reunión Argentina de Sedimentología, San Luis, 2004, Resúmenes. Contribuciones Simposio K/T: 188.

Del Río, C.; Concheyro, A.; Martínez, S. and Stilwell, J., 2004. Macro y nanofósiles de Cerros Bayos (Daniano), cuenca Neuquina, provincia de La Pampa, Argentina. X Reunión Argentina de Sedimentología, San Luis, 2004, Resúmenes. Contribuciones Simposio K/T: 189.

Guerstein, G.R.; Prámparo, M.B.; Junciel, G.L.; Guler, M.V. and Daners, G., 2004. Bioestratigrafía basada en dinoflagelados del Maastrichtiano-Daniano del Atlántico sudoccidental. X Reunión Argentina de Sedimentología, San Luis, 2004, Resúmenes. Contribuciones Simposio K/T: 189-191.

Marquillas, R.; Sabino, I.; del Papa, C.; Théry, J.; Matthews, S. and Heredia, J., 2004. Estado de la búsqueda del límite K/T en la cuenca del Grupo Salta. X Reunión Argentina de Sedimentología, Actas de Resúmenes: 116-118. San Luis.

Náñez, C. and Malumián, N., 2004. Distribution of conspicuous or endemic benthic foraminifera across the K/P boundary in Patagonia. X Reunión Argentina de Sedimentología, San Luis, 2004, Resúmenes. Contribuciones Simposio K/T: 192-194.

Ocampo, A.C., 2004. Cretaceous-Tertiary deposits from the Chicxulub impact crater in southern Quintana Roo, México and Belize. X Reunión Argentina de Sedimentología, San Luis, 2004, Resúmenes. Contribuciones Simposio K/T: 194-195.

Parras, A.; Casadío, S.; Náñez, C.; Concheyro, A. and Griffin, M., 2004. The Cretaceous/Paleogene boundary in the Neuquén Basin, northern Patagonia, Argentina. X Reunión Argentina de Sedimentología, San Luis, 2004, Contribuciones Simposio K/T: 196-197.

Ruiz, L. and Scasso, R.A., 2004. Análisis paleoambiental de la Formación Lefipán en el entorno del límite K/T de la Provincia de Chubut. X Reunión Argentina de Sedimentología, San Luis, 2004, Contribuciones Simposio K/T: 198-199.

Scasso, R.A.; Concheyro, A.; Aberhan, M.; Kiessling, W.; Kriwet Y.; Medina, F., 2004. Depósitos de Tsunami en el Límite K-T de Neuquén. X Reunión Argentina de Sedimentología, San Luis, 2004, Contribuciones Simposio K/T: 199.

Marine Paleogene of Patagonia and the adjacent continental shelf; the Paleogene/Neogene boundary:

Several colleagues are working on the stratigraphy, micro and macrofossils, and palynomorphs from the Paleogene of Patagonia. The micropaleontological lab of the Argentine Geological Survey (N. Malumián, A. Caramés, C. Náñez, G. Jannou) is working on the stratigraphy and foraminifera of the Paleogene of the Argentine Continental Shelf and Patagonia. Several geological sheets of Patagonia, including Paleogene units, are being surveyed by J. Panza and other colleagues of the Argentine Geological Survey. Colleagues of the La Pampa University (S. Casadío, A. Parras, M. Griffin) and the Instituto Antártico Argentino (S. Marenssi, S. Santillana) are working on stratigraphy and fossil invertebrates. Palynology of Paleogene marine units of Patagonia and the continental shelf is being studied by several colleagues, among them V. Barreda (Museo Argentino de Ciencias Naturales), M. Quattrocchio, R. Guerstein and their team (Bahía Blanca University, Argentina), W. Volkheimer (CRYCIT, CONICET). E. Musacchio (Universidad Nacional de la Patagonia) is working on charophytes from southern South America and the K/P boundary.
Some publications are:

Barreda, V.; García, V.; Quattrocchio, M.E. and Volkheimer, W., 2003. Palynostratigraphic análisis of the Río Foyel Formation (Latest Oligocene-Early Miocene), northwestern Patagonia, Argentina. Revista Española de Micropaleontología 35: 229-240.

Caramés, A.; Malumián, N. and Náñez, N., 2004. Foraminíferos del Paleogeno del pozo Península Valdés, Patagonia septentrional, Argentina. Ameghiniana. In press.

Caramés, A. and Malumián, N. A monograph on the genus Rzehakina and related forms. In preparation.

Casadío, S.; De Angeli, A. ; Feldmann, R.M.;Garassino, A.; Hetler, A.L.; Parras, A. and Schweitzer, C., 2004. New decapod crustaceans (Thalassinidea, Galatheoidea, Brachyura) from the middle Oligocene of Patagonia, Argentina. Annals of Carnegie Museum, 73(2):25-47.

Griffin, M.; Casadío, S.; Marenssi, S. and Santillana, S., 2003. Invertebrados de la Formación Man Aike (Eoceno) en el sudoeste del departamento Lago Argentino, provincia de Santa Cruz, Argentina. Ameghiniana, 40:87R.

Guerstein, G.R.; Guler, M.V. and Casadío, S. Palynostratigraphy and Palaeoenvironments of the Oligocene/Miocene boundary from the Centinela Formation, southwestern Argentina. The Palynology and Micropalaeontology of Boundaries, Geological Society Special Publication, Eds. A.B. Beaudoin and M.J. Head. In press.

Marenssi, S.; Casadío, S. and Santillana, S., 2003. Estratigrafía y paleoambientes de las sedimentitas aflorantes entre el cerro Pirámides y Barrancas Blancas, sudoeste de la provincia de Santa Cruz, Argentina. Revista de la Asociación Geológica Argentina, 58:403-416.

Parras, A. and Casadío, S. Taphonomy and sequence stratigraphic significance of oyster-dominated concentrations from the San Julián Formation, Oligocene of Patagonia, Argentina. Palaeogeography, Palaeoclimatology, Palaeoecology. Submitted.

Parras, A. and Casadío, S. The Oyster Crassostrea? Hatcheri (Ortmann, 1897), a Physical Ecosystem Engineer from the Upper Oligocene-Lower Miocene of Patagonia, Southern Argentina. Palaios. Submitted.

Parras, A.; Casadío, S.; Feldmann, R.M. ; Scheiwtzer, C.; Griffin, M. and Marenssi, S. Ages and paleogeography of the marine transgressions at the Paleogene-Neogene boundary in Patagonia, southern Argentina. Geological Society of America Meeting. Colorado, November 2004. Submitted.


Paleogene from Northwestern Argentina:

Colleagues of the Universidad Nacional de Salta, northwestern Argentina, are actively working on the stratigraphy, geological framework, geochemistry, isotopes and radiometric ages of the Maastrichtian-Danian transgression, the K/P boundary and Paleogene units from northwestern Argentina.
They have several publications and papers in press and in preparation:

- Marquillas, R.; del Papa, C.; Sabino, I. and Heredia, J., 2003. Prospección del límite K/T en la cuenca del Noroeste, Argentina. Nota Breve, Revista de la Asociación Geológica Argentina, 58 (2): 171-174.

- Matheos, S. and del Papa, C., 2003. Oolitic facies in carbonate lacustrine deposits of Maíz Gordo formation (Paleogene) in the northwest argentine. II Congreso Latinoamericano de Sedimentología, Actas, sección 2, p.41, Belem, Brasil.

- Marquillas, R. and del Papa, C., 2003. Carbonate microfacies of the Yacoraite formation (Maastrichtian-Danian) in the Metán sub-basin, NW Argentina. III Congreso Latinoamericano de Sedimentología, Actas, sección 8, p. 162, Belem, Brasil.

- del Papa, C. and Kirschbaum A., 2004. Identificación de una superficie de discontinuidad sedimentaria en la Formación Lumbrera (Eoceno), noroeste argentino. X Reunión Argentina de Sedimentología, Actas de Resúmenes: 53-54. San Luis.

- Novara, M. G. and Marquillas, R.A., 2004. Litología y Contactos de la Formación Tunal (Daniano) en la Quebrada El Chorro, Departamento La Viña, Salta. X Reunión Argentina de Sedimentología, Actas de Resúmenes: 116-118. San Luis.

- Marquillas, R.; Sabino, I.; del Papa, C.; Théry, J.; Matthews, S. and Heredia, J., 2004. Estado de la búsqueda del límite K/T en la cuenca del Grupo Salta. X Reunión Argentina de Sedimentología, Actas de Resúmenes: 116-118. San Luis.

- Marquillas, R.A.; del Papa, C.; Sabino, I.F. Sedimentary aspects and paleoenvironmental evolution of a rift basin: Salta Group (Cretaceous – Paleogene), northwestern Argentina. International Journal of Earth Sciences. In press.

- Volkheimer, W.; Novara, M.G.; Narváez P. and Marquillas, R.A. Palinología de la Formación Tunal (Daniano) en la Quebrada El Chorro, Salta, Argentina. Significado Paleoambiental. In preparation.

- Marquillas, R.; Sabino, I.; Sial, A.N.; del Papa, C.; Ferreira, V.; Matthews, S. Carbon and oxygen isotopes of Maastrichtian-Danian limestones: Yacoraite Formation, northwestern Argentina. Journal of South American Earth Sciences. In preparation.

- Novara, M.G., 2003. Caracterización estratigráfica de la Formación Tunal (Paleoceno) en la quebrada El Chorro (Departamento La Viña). Comparación con la sección del río Corralito (Departamento Rosario de Lerma). Universidad Nacional de Salta. Graduate thesis. Unpublished.

Doctorate thesis, in preparation:
- Novara, M. G. La Formación Tunal (Daniano) Cuenca del Grupo Salta, Argentina. Relación con la Formación Olmedo. Universidad Nacional de Salta.
- Narváez, P. Palinoestratigrafía y Paleoambientes del Cenozoico del noroeste argentino.

Continental Paleogene of Patagonia: stratigraphy, fossil vertebrates and flora, paleoclimates:

Continuous research on the continental Paleogene successions of Patagonia is witnessed by a number of publications, papers in press and abstracts by several colleagues, most of them from the Universidad Nacional de La Plata y Museo, and also from the Museo Argentino de Ciencias Naturales.

Barreda, V.; Césari, S.; Marenssi, S. and Palazzesi, L., 2004. The Río Leona Formation: a key record of the Oligocene flora in Patagonia. 7º Internacional Organization of Paleobotany Conference (Bariloche).

Kohn, M.J.; Josef, J.A.; Madden, R.; Kay, R.; Vucetich, G. and Carlini, A., 2004. Climate stability across the Eocene-Oligocene transition, southern Argentina. Geology 32 (7): 621-624.

Madden, R.H.; Carlini, A.A.; Vucetich, M.G.; Kay, R.F; Heizler, M.; Vilas, F.; Re, G.H.; Kohn M.J.; Zucol, A. and Bellosi, E., 2003. Gran Barranca: The Most Complete South American Middle Cenozoic Sequence. Symposium on the Paleogene. Leuven, Belgium.

Madden, R.H.; Carlini, A.A.; Vucetich, M.G.; Kay, R.F; Heizler, M.; Vilas, F.; Re, G.H.; Kohn, M.J.; Zucol, A. and Bellosi, E., 2003. The Terrestrial Eocene-Oligocene Transition at Gran Barranca in Patagonia: A high-resolution Southern Hemisphere continental archive. Symposium on the Paleogene. Leuven, Belgium.

Carlini, A.A.; Ciancio, M. and Scillato-Yané, G.J., 2004. La tribu Stegotheriini (Xenarthra, Dasypodidae), 20 Ma. más de registro paleógeno. Resúmenes de las XX Jornadas Argentinas de Paleontología de Vertebrados:16. La Plata, Mayo de 2004.

Palazzesi, L.; Barreda, V. and Prieto, A.R., 2003. Análisis evolutivo de la vegetación herbáceo-arbustiva en las provincias de Chubut y Santa Cruz durante el Cenozoico: evidencias palinológicas. Revista del Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” n.s. 5(2): 151-161.

Zucol, A.F.; Brea, M.; Madden, R. H.; Bellosi, E.; Carlini, A. A. and Vucetich, G. Análisis fitolítico del Miembro Colhué Huapi (Formación Sarmiento), Chubut, Argentina. En: Zucol, A.F.; Osterrieth, M. and M. Brea (Eds.), Fitolitos: Estado actual de sus conocimientos en América del Sur. Mar del Plata (2003). ISBN 987-544-060-4. In press.

Carlini, A.A. and Scillato-Yané, G.J. The oldest Megalonychidae (Tardigrada, Xenarthra) and the phylogenetic relationships of the family. Neues Jahrbuch für Geologie ünd Paläontologie. In press.

López, G. and Bond, M., 2003. Una nueva familia de ungulados (Mammalia, Notoungulata) del Paleógeno sudamericano. XIX Jornadas Argentinas de Paleontología de Vertebrados (Buenos Aires). Ameghiniana 40 (4) suplemento: 60 R.

Ortiz Jaureguizar, E.; Bond, M.; López, G.; Giallombardo, A. and Villafañe, A., 2003. Estimación de la masa corporal de los Proterotheriidae (Mammalia, Litopterna) y análisis de su patrón de cambio a través del tiempo. XIX Jornadas Argentinas de Paleontología de Vertebrados (Buenos Aires). Ameghiniana 40 (4) suplemento: 64 R.

Bond, M.; López, G.; Madden, R.; Reguero, M. and Scarano, A., 2004. Los Ungulados no mienten. XX Jornadas Argentinas de Paleontología de Vertebrados (La Plata). Resúmenes: 13.

Cladera, G.; Ruigomez, E.; Ortiz Jaureguizar, E.; Bond, M. and López, G., 2004. Tafonomía y paleoecología de la Gran Hondonada (Formación Sarmiento, Edad-Mamífero Mustersense, Eoceno medio), Chubut, Argentina. Ameghiniana 41 (3), 2004. In press.

Gelfo J.N. and Picasso, M.B.J., 2003. Consideraciones sobre la morfología de astrágalos eutéricos del Eoceno de Patagonia, Argentina. Ameghiniana 40 (4) – Suplemento. p: 57R.

Gelfo, J.N. and Picasso, M.B.J. Los ungulados de la Edad Mamífero Peligrense. XVIII Jornadas Argentinas de Mastozoología. Resúmenes, p:30. 2003.

Gelfo, J.N., 2004. Revisión sistemática de Raulvaccia peligrensis (Bonaparte, Van Valen y Kramarz (Mammalia, Ungulatomorpha) del Paleoceno Inferior de Patagonia. Ameghiniana 40 (4) – Suplemento. p: 85R.

Gelfo, J.N. and Tejedor M. Implicancias sistemáticas de nuevos restos de Asmithwoodwardia subtrigonia (Mammalia: Litopterna ?) del Paleógeno de Patagonia. XX Jornadas Argentinas de Paleontología de Vertebrados. Resúmenes: 30. In press.

Gelfo, J.N. New South American Mioclaenidae (Mammalia: Ungulatomorpha) from the Tertiary of Patagonia, Argentina. (Museo Arqueológico Regional, Volumen especial de Homenaje a Emiliano Aguirre. Madrid, España). In press.

Raigemborn, M.S., 2004. Caracterización de los argilominerales de la Formación Koluél Kaike (Paleoceno superior–Eoceno inferior) en el Centro-Oeste de la cuenca del Golfo San Jorge (Chubut, Argentina). X Reunión Argentina de Sedimentología, San Luis, 2004, Resúmenes, p. 146.

E. Bellosi and colleagues (Museo Argentino de Ciencias Naturales, Buenos Aires) are working on continental successions of Patagonia, particularly on Gran Barranca, and also on the Paleogene of Entre Ríos (Argentina) and Uruguay.

Continental Paleogene of Brazil:

L. Bergqvist and colleagues continue their research on the vertebrates from the continental Paleogene of Brazil, and are currently working on a project on fossil mammals from southeastern Brazil.
Some publications:

Avilla, L.S. and Bergqvist, L.P., 2003. The ecological role of Tetragonostylps apthomasi Price and Paula-Couto, 1950 (Mamalia: Eutheria: Astrapotheria): an ecomorphological approach. Livro de Resumos do III Simpósio Brasileiro de Paleontologia de Vertebrados, p, 13.

Avilla, L.S. and Bergqvist, L.P., 2003. Phylogenetic position of Tetragonostylops apthomasi Price and Paula-Couto, 1950 (Mammalia: Eutheria: Astrapotheria). Livro de Resumos do III Simpósio Brasileiro de Paleontologia de Vertebrados, p, 12.

Abrantes, E.A..L. and Bergqvist, L.P., 2003. Proposta filogenética para os Dasypodidae (Mammalia: Cingulata). Livro de Resumos do III Simpósio Brasileiro de Paleontologia de Vertebrados, p. 11.

Avilla, L.S.; Souza, A.F.; Abrantes, E.A.L.; Moreira, G.C. and Bergqvist, L.P., 2003. Aparato mastigatório de Tetragonostylops apthomasi Price and Paula-Couto, 1950 (Mammalia: Eutheria: Astrapotheria). Livro de Resumos do II Congresso Brasileiro de Mastozoologia, p. 278-279.

Avilla, L.S. and Bergqvist, L.P., 2003. Sobre o hábito locomotor de Carodnia vieirai Paula-Couto, 1952 (Mammalia:Xenungulata). Livro de Resumos do II Congresso Brasileiro de Mastozoologia, p. 278.

Bergqvist, L.P. and Almeida, E.B., 2003. Inventário de ocorrências de mamíferos fósseis no Brasil. Boletim de Resumos do XVIII Congresso Brasileiro de Paleontologia, p. 64-65.

Bergqvist, L.P. and Avilla, L.S., 2003. New appoaches to Carodnia vieirai (mammalia, Xenungulata) of the São José de Itaboraí Basin (Itaboraian). Boletim de Resumos do XVIII Congresso Brasileiro de Paleontologia, p. 66.

Bergqvist, L.P., 2003. The role of teeth in mammal history. Brazilian Journal of Oral Science, 2(6): 249-257.

Abrantes, E.A.; Bergqvist, L.P. and Avilla, L.S., 2004. A importância dos cingulados da bacia de São José de (Itaboraí, Paleoceno superior, Itaboraiense), no entendimento das inter-relações dos Xenarthra. Boletim de Resumos do IV Simpósio Brasileiro de Paleontologia de Vertebrados, p. 1.

Line, S.P. and Bergqvist, L.P., 2004. Enamel structure of Paleocene ungulates from São José de Itaboraí basin, Brazil. Condylarthra, Litopterna, Notoungulata, Xenungulata and Astrapotheria. Libro de Resúmenes de la XX Jornadas Argentinas de Paleontología de Vertebrados, p. 48.

Bergqvist, L.P.; Powell, J.E. and Avilla, L.S., 2004. A new xenungulate from the Rio Loro Formation (Paleocene) from Tucumán Province (Argentina). Libro de Resúmenes de la XX Jornadas Argentinas de Paleontología de Vertebrados, p. 12.

Avilla, L.S. and Bergqvist, L.P., 2004. A cladistic approach to Astrapotheria (Mammalia: Eutheria). Libro de Resúmenes de la XX Jornadas Argentinas de Paleontología de Vertebrados, p. 11.

Bergqvist, L.P.; Abrantes, E.A.L. and Avilla, L.S., 2004. The Xenarthra of São José de Itaboraí basin (upper Paleocene, Itaboraian), Rio de Janeiro, Brasil. Geodiversitas 26(2):323-337.

Line, S.P. and Bergqvist, L.P. Enamel structure of Paleocene mammals of the São José de Itaboraí basin, Brazil. “Condylarthra”, Litopterna, Notoungulata, Xenungulata, and Astrapotheria. Journal of Vertebrate Paleontology (2004). In press.

Avilla, L.S. and Bergqvist, L.P. The ecological role of Tetragonostylops apthomasi Price e Paula Couto, 1950 (Mammalia: Eutheria: Astrapotheria): an ecomorphological approach. Revista da Universidade do Estado do Rio de Janeiro - UERJ (2003). In press.

Abrantes, E.A.L. and Bergqvist, L.P. Proposta filogenética para os Dasypodidae (Mammalia: Cingulata). Revista da UERJ (2003). In press.

Continental Paleogene of Peru:

Goin, F.J.; Vieytes, E.C.; Vucetich, M.G.; Carlini, A.A. and Bond, M. Enigmatic Mammal from the Paleogene of Perú. Special volume edited by K. Campbell. In press.

The Paleogene of the Sergipe Basin, Brazil:

Elizabete Pedrão Ferreira (Petrobras) finished her doctoral thesis on the palynology of the Paleocene-Eocene from the Sergipe Basin, Brazil. She and Marta Claudia Viviers (Petrobras) are also studying the chlorophyta algae –Tasmanites, palynofacies and benthic foraminifera and have several contributions to be presented to the next Brazilian Paleontological Congress.

Northwestern Caribbean coast of Colombia:

Hermann Duque Caro and the Instituto Colombiano del Petroleo (ECOPETROL) are surveying and sampling the most relevant stratigraphic sections of the marine Paleogene and Neogene of the Northwestern Caribbean coast of Colombia, in order to integrate data from different specialties. For now, sections of the Paleocene and Early Eocene have been sampled, and the study of the foraminifera was initiated.
Samples with topotypes of Globorotalia bolivariana (Petters) were sent to W. Berggren and R. Olsson for the Atlas of Eocene Planktonic Foraminifera. Radiolaria are being studied by Annika Sanfilippo, and samples for radimetric dating on glauconite are being analyzed in Australia. The Paleocene and Early Eocene from this region had been only routinely studied and the joint work with ECOPETROL will provide very good biostratigraphic and micropaleontological data on the Paleogene of this northern area of South America, of important paleoceanographic significance.
A synthesis on the Paleogene of Colombia by Duque Caro is nearly finished and ready for publication.