Results 11 to 20 of about 825 (103)

A reassessment of bunodont metatherians from the paleogene of itaboraí (Brazil): systematics and age of the Itaboraian salma [PDF]

open access: yes, 2019
Early Paleogene metatherians with inflated, low cusps (bunodont dentition), such as Bobbschaefferia, Procaroloameghinia, Protodidelphis, Guggenheimia, and Zeusdelphys have been subject to different interpretations regarding their affinities.
Goin, Francisco Javier   +1 more
core   +7 more sources

The oldest Brazilian snakes from the cenomanian (Early Late Cretaceous) [PDF]

open access: yes, 2014
South American Mesozoic snake diversity is mostly represented by genera from the Cenomanian (Najash), Santonian- Campanian (Dinilysia), and Campanian-Maastrichtian (Alamitophis, Patagoniophis, Rionegrophis, and Australophis) of Patagonia, Argentina.
Albino, Adriana Maria   +3 more
core   +1 more source

El Gran Intercambio Biótico Americano: una revisión paleoambiental de evidencias aportadas por mamíferos y aves neotropicales [PDF]

open access: yes, 2013
Tradicionalmente, se ha considerado que la formación del istmo de Panamá (durante el Plioceno hace 3 Ma) facilitó el movimiento de especies entre Sudamérica y Norteamérica. Este proceso ecológico y evolutivo denominado Gran Intercambio Biótico Americano (
Araújo, Mariane Fátima Silva   +4 more
core   +5 more sources

Propostas Para a Preservação do Parque Paleontológico de São José de Itaboraí (Brasil) a Partir da Percepção Populacional [PDF]

open access: yes, 2011
The São José de Itaboraí Basin is considered a geological heritage due the richness of invertebrates and vertebrates fossils, specially the late Paleocene mammals, which spread through the Earth about 57 Ma ago, after the Late Cretaceous extinction ...
Carvalho, Ismar de Souza   +1 more
core   +2 more sources

A industrialização de São Gonçalo e a Companhia Nacional de Cimento Portland (1931/1942) [PDF]

open access: yes, 2018
O artigo tem como objetivo analisar a instalação da Companhia Nacional de Cimento Portland (CNCP), em São Gonçalo, entre os anos de 1931 e 1942. A empresa, subsidiária da Lone Star, de capital norte-americano, decidiu pela construção de uma fábrica de ...
Brandão, Rafael Vaz da Motta
core   +1 more source

New Cingulata (Mammalia, Xenarthra) from the Upper Lumbrera Formation (Bartonian, middle Eocene), Salta Province, Argentina [PDF]

open access: yes, 2021
Nós descrevemos restos isolados de cingulado do Paleógeno da localidade de El Simbolar, Formação Lumbrera Superior (Bartoniano), sul da Província de Salta, noroeste da Argentina.
Babot, María Judith   +7 more
core   +1 more source

† Estelestes ensis (Mammalia, Metatheria) from the early Eocene of Baja California (Mexico) as a generalized polydolopimorphian [PDF]

open access: yes, 2023
Estelestes ensis Novaceck et al., 1991 is a curious Paleogene metatherian mammal recognized on the basis of a single specimen from Baja California (Mexico) in southern North America.
Crespo Roures, Vicente Daniel   +3 more
core   +1 more source

The Early Eocene Climatic Optimum at the Lower Section of the Lumbrera Formation (Ypresian, Salta Province, Northwestern Argentina): Origin and Early Diversification of the Cingulata [PDF]

open access: yes, 2021
Recently, the basal beds of the lower section of the Lumbrera Formation have been referred to the early Eocene (Ypresian) based on the identification of a succession of hyperthermal events globally dated between 52 and 55 Ma.
Arnal, Michelle   +8 more
core   +1 more source

A malacofauna fóssil da Bacia de Itaboraí, Rio de Janeiro: histórico dos estudos e perspectivas para o futuro [PDF]

open access: yes, 2018
The limestones of Itaboraí Basin (Middle Paleocene) harbors a rich fossil record, mainly of mammals and pulmonate gastropods, but also containing birds, reptiles, amphibians and plants.
Salvador, Rodrigo Brincalepe   +1 more
core   +2 more sources

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