Buscar
Mostrando ítems 31-40 de 164
Leaiid conchostracans from the uppermost Permian strata of the Parana Basin, Brazil: Chronostratigraphic and paleobiogeographic implications
(Pergamon-Elsevier B.V. Ltd, 2010-03-01)
Conchostracan fossils are abundant and relatively diversified in the Rio do Rasto Formation (Passa Dois Group, Parana Basin, southern Brazil), but leaiids ('Leaia pruvost' [Reed, F.R.C., 1929. Novos Phyllopodos Fosseis do ...
The Early Evolution of Rhynchosaurs
(Frontiers Media Sa, 2016-01-01)
The rhynchosaurian archosauromorphs are an important and diverse group of fossil tetrapods that first appeared during the Early Triassic and probably became extinct during the early Late Triassic (early Norian). Here, the ...
Fin d'un mythe géologique moderne: Il n'y a pas de rudistes au Brésil! et ses implications paléobiogéographiques
(2015-07-14)
Out of the few records of rudists from the Cretaceous strata of the South Atlantic coastal basins only two refer to Brazilian localities. However, petrographic analyses demonstrate that these shells should be assigned to ...
End of a modern geological myth: there are no rudists in Brazil! Paleobiogeographic implications
(Carnets Geologie, 2015-07-14)
Out of the few records of rudists from the Cretaceous strata of the South Atlantic coastal basins only two refer to Brazilian localities. However, petrographic analyses demonstrate that these shells should be assigned to ...
First pliosaur remains (sauropterygia, pliosauridae) from the Oxfordian of the Atacama desert
(Elsevier, 2020)
This research presents the first pliosaur remains from the Upper Jurassic of the Atacama Desert, in northern
Chile. Two specimens recovered from Oxfordian levels, are represented by a fragmentary mandibular ramus and
by ...
New record of Neosaimiri (Cebidae, Platyrrhini) from the late Middle Miocene of Peruvian Amazonia
(Elsevier, 2020)
The Honda Group of La Venta, Colombia, has yielded a wide array of crown platyrrhine primates, documenting the late Middle Miocene epoch (ca. 13.1–12.6 Ma, Laventan South American Land Mammal Age). Although exceptional, ...
Jurassic organic-walled marine microplankton from the Neuquén Basin. Distribution, biostratigraphy and paleobiogeography. A reviewMicroplancton marino de pared orgánica, Jurásico de la Cuenca Neuquina. Distribución, bioestratigrafía y paleobiogeografía. Una revisión.
(Asociación Paleontológica Argentina, 2016-12)
El Mesozoico constituye un momento crucial para analizar el recambio de los distintos linajes microplanctónicos producto del inicio de la ruptura de Pangea. La paleogeografía de Sudamérica y por lo tanto la de Argentina, ...