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New macrostomatan snake from the Paleogene of northwestern Argentina
(Elsevier France-editions Scientifiques Medicales Elsevier, 2018-06)
The lower Eocene Lumbrera Formation in Salta province, northwestern Argentina, outstands for providing snake remains from a non-Patagonian Paleogene site. The material consists of articulated precloacal vertebrae that ...
Paleogene dinoflagellate cysts from the Punta Prat, Southern Chile
(Taylor & Francis, 2009-03)
Paleogene dinoflagellate cysts were recorded from the Chorrillo Chico and Agua Fresca formations at Punta Prat, southern Chile. Due to the presence of Palaeoperidinium pyrophorum, the Chorrillo Chico Formation is no younger ...
The utility of Desmidiospora: a paradigm shift based on Paleogene fungal remains from the Ñirihuau Basin, Argentina
(American Association of Stratigraphic Palynologists Foundation, 2019-10)
Fungal remains similar to those described as Desmidiospora willoughbyi were found in samples from the Rıo Foyel section (El Foyel Group of Paleogene age), Nirihuau Basin, Argentina. A full description and illustrations are ...
Paleogene Glyptodontidae Propalaehoplophorinae (Xenarthra, Cingulata) in extra-patagonian areasRegistros paleógenos de Glyptodontidae Propalaehoplophorinae (Xenarthra, Cingulata) en áreas extrapatagónicas
(Servicio Nacional de Geología y Minería, 2016-01)
Paleogene records of Cingulata Glyptodontidae are scarce. The only well described comes from the Paleogene of Argentine Patagonia. Two subfamilies have been reported for that period: Glyptatelinae and Propalaehoplophorinae. ...
HYDROTHERMAL CEMENTATION IN PALEOGENE SEDIMENTARY DEPOSITS OF THE CONTINENTAL RIFT OF SOUTHEASTERN BRAZIL: MINERALOGY AND TECTONIC RELATIONSHIPSCIMENTAÇÃO HIDROTERMAL EM DEPÓSITOS SEDIMENTARES PALEOGÊNICOS DO RIFT CONTINENTAL DO SUDESTE DO BRASIL: MINERALOGIA E RELAÇÕES TECTÔNICAS
(Sociedade Brasileira de Geologia, 2017)
Sr-isotope chronostratigraphy of Paleogene-Neogene marine deposits: Austral Basin, southern Patagonia (Argentina)
(Pergamon-Elsevier Science Ltd, 2012-08)
The Paleogene to Neogene San Julián and Monte León formations underlie the central and eastern parts of the Austral Basin (Patagonia, Argentina), and represent coastal plain to shallow shelf systems within a retroarc ...
New insights on the Paleogene dinoflagellate cyst genera Enneadocysta and Licracysta gen. nov. based on material from offshore eastern Canada and southern Argentina
(Micropaleontology Press, 2006-12)
Enneadocysta is a biostratigraphically important Paleogene dinoflagellate cyst genus. Its original interpretation as a partiform gonyaulacoid (thus belonging to the gonyaulacalean suborder Cladopyxiineae) was based on the ...
A parapithecid stem anthropoid of African origin in the Paleogene of South America
(American Association for the Advancement of Science, 2020-04)
Phylogenetic evidence suggests that platyrrhine (or New World) monkeys and caviomorph rodents of the Western Hemisphere derive from source groups from the Eocene of Afro-Arabia, a landmass that was ∼1500 to 2000 kilometers ...
Environmental forcings of Paleogene Southern Ocean dinoflagellate biogeography
(American Geophysical Union, 2011-03-04)
Despite warm polar climates and low meridional temperature gradients, a number of different high-latitude plankton assemblages were, to varying extents, dominated by endemic species during most of the Paleogene. To better ...
A tsunami deposit at the Cretaceous/Paleogene boundary in the Neuquén Basin of Argentina
(Academic Press Ltd - Elsevier Science Ltd, 2005-04)
A coarse-grained sandstone bed of Cretaceous/Paleogene (K/Pg) boundary age occurs in a homogeneous neritic shelf mudstone sequence (Jagüel Formation) in the Neuquén Basin of Argentina. This bed, 15 - 25 cm thick, contains ...