Results 51 to 60 of about 1,440 (226)

The higher-level phylogeny of Archosauria (Tetrapoda:Diapsida) [PDF]

open access: yes, 2010
Crown group Archosauria, which includes birds, dinosaurs, crocodylomorphs, and several extinct Mesozoic groups, is a primary division of the vertebrate tree of life.
Arcucci A.   +114 more
core   +1 more source

On the validity of the genus Amblydectes Hooley 1914 (Pterodactyloidea, Anhangueridae) and the presence of Tropeognathinae in the Cambridge Greensand

open access: yesAnais da Academia Brasileira de Ciências, 2021
Amblydectes is a problematic genus proposed more than a century ago for several pterosaur specimens from the Cambridge Greensand. Its problematic nature is due to the fragmentary preservation of the referred specimens, limited to several rostral tips. In
BORJA HOLGADO
doaj   +1 more source

A pterodactyloid pterosaur from the Upper Cretaceous Lapurr sandstone, West Turkana, Kenya

open access: yesAnais da Academia Brasileira de Ciências, 2011
An isolated pterosaurian caudal cervical (~ postcervical) vertebra was recovered from the Upper Cretaceous Lapurr sandstone ofWest Turkana, northwestern Kenya. The vertebral centrum is short, wide, and dorsoventrally compressed.
Patrick M. O'Connor   +2 more
doaj   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

open access: yesThe Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano   +3 more
wiley   +1 more source

On two pterosaur humeri from the Tendaguru beds (Upper Jurassic, Tanzania)

open access: yesAnais da Academia Brasileira de Ciências, 2009
Jurassic African pterosaur remains are exceptionally rare and only known from the Tendaguru deposits, Upper Jurassic, Tanzania. Here we describe two right humeri of Tendaguru pterosaurs from the Humboldt University of Berlin: specimens MB.R.
Fabiana R. Costa, Alexander W.A. Kellner
doaj   +1 more source

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates

open access: yesThe Anatomical Record, EarlyView.
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar   +5 more
wiley   +1 more source

New long-tailed pterosaurs (Wukongopteridae) from western Liaoning, China

open access: yesAnais da Academia Brasileira de Ciências, 2010
Two almost complete long-tailed pterosaurs from the Linglongta, Jianchang County, western Liaoning, China, are described and represent new taxa referred to the non-pterodactyloid clade Wukongopteridae. Kunpengopterus sinensis gen. et sp. nov.
Xiaolin Wang   +5 more
doaj   +1 more source

A small azhdarchoid pterosaur from the latest Cretaceous, the age of flying giants [PDF]

open access: yes, 2016
Pterosaur fossils from the Campanian–Maastrichtian of North America have been reported from the continental interior, but few have been described from the west coast.
Arbour, Victoria M.   +3 more
core   +2 more sources

The first pterosaur from the Bauru Group: an azhdarchid from the Upper Cretaceous of Brazil

open access: yesPapers in Palaeontology, Volume 11, Issue 5, September/October 2025.
Abstract The vertebrate fossil record of the Bauru Group (Upper Cretaceous, southeastern Brazil) is remarkably rich, with a predominance of titanosaurs and crocodyliforms, alongside theropods, turtles, squamates, fishes and even small mammals. In contrast, pterosaur remains from the Bauru Group have remained elusive until now.
Ariovaldo A. Giaretta   +3 more
wiley   +1 more source

Cautionary tales on the use of proxies to estimate body size and form of extinct animals

open access: yesEcology and Evolution, Volume 14, Issue 9, September 2024.
Reconstructing the body size and form of extinct animals is of vital importance to our understanding of macroevolution and palaeontology. This is often done using anatomical proxies where extinct species are known only from fragmentary remains. However, there are many limitations influencing the selection of proxy taxa that are frequently overlooked ...
Joel H. Gayford   +7 more
wiley   +1 more source

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