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Mostrando ítems 121-130 de 164
The oldest known snakes from the Middle Jurassic-Lower Cretaceous provide insights on snake evolution
(Nature Publishing Group, 2015-01)
The previous oldest known fossil snakes date from ∼100 million year old sediments (Upper Cretaceous) and are both morphologically and phylogenetically diverse, indicating that snakes underwent a much earlier origin and ...
Sistemática, bioestratigrafia e paleogeografia do gênero Elateropolienites Herngreen 1973 na margem equatorial brasileira
(Universidade de São Paulo, Instituto de Geociências, 1989)
RADIOLARIANS: STATE OF KNOWLEDGE AND THEIR APPLICATIONS TO GEOSCIENCES
(Universidade Estadual de Campinas, 2011)
A new Andinichthyidae catfish (Ostariophysi, Siluriformes) from the Paleogene of northwestern Argentina
(Society of Vertebrate Paleontology, 2018-05)
The clade Andinichthyidae includes three poorly known genera of extinct catfishes from Upper Cretaceous–Paleogene beds of Bolivia. These taxa are of uncertain phylogenetic position, and their anatomy is far from being well ...
First fossil wood from the northern Pampa (Upper pleistocene), Santa Fe province, Argentina
(Asociación Paleontológica Argentina, 2019-08)
Paleobotany records from the Northern Pampa are very scarce and poorly known. 17 Only a palynological study in Paraná Formation (Upper Miocene) was previously done 18 (Anzótegui and Garralla, 1982, 1986). In this work, a ...
EOCENE BIRDS FROM THE WESTERN MARGIN OF SOUTHERNMOST SOUTH AMERICA
(PALEONTOLOGICAL SOC INC, 2010-05-25)
This study presents the first record of Eocene birds from the western margin of southernmost South America. Three localities in Magallanes, southern Chile, have yielded a total of eleven bird remains, including Sphenisciformes ...
Sclerorhynchid teeth (Neoselachii, Sclerorhynchidae) from the Late Cretaceous of the Quiriquina Formation, central Chile
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2004)
Oldest record of Thinocoridae (Aves, Charadriiformes) from South AmericaLe plus ancien thinocoridé (Aves, Charadriiformes) d’Amérique du Sud
(Elsevier Masson, 2016-03)
Here we describe an isolated distal end of tarsometatarsus coming from the late Miocene levels of the Loma de Las Tapias Formation (San Juan Province, Argentina). The specimen was identified as a Thinocoridae, and constitutes ...
Lakumasaurus antarcticus, n. gen. et sp., a new mosasaur (Reptilia, Squamata) from the Upper Cretaceous of Antarctica
(Asociación Paleontológica Argentina, 2002-06)
Mosasaurs were large predatory lizards that typically inhabited warm, epicontinental seas during the last 20 million years of the Mesozoic Era. Evidence of their taxonomic diversity derives mainly from significant finds ...