Results 31 to 40 of about 652 (199)

The pectoralis muscle orientation as an indicator of the modes of wing-propelled locomotion in birds. [PDF]

J Anat
The pectoralis orientation of birds was consistent with the orientation of the aerodynamic force acting on the wing, varying by wing‐propelled locomotion (WPL) mode. The skeletal morphology unique to each WPL mode, related to the origin/insertion of the pectoralis, may be associated with these functional demands of pectoralis orientation.
Akeda T, Fujiwara SI.
europepmc   +2 more sources

A taxonomic and phylogenetic review of the anhanguerid pterosaur group Coloborhynchinae and the new clade Tropeognathinae [PDF]

Acta Palaeontologica Polonica, 2020
Anhanguerids are a particular group of pterodactyloid pterosaurs, characterized mainly by their rostral sagittal crests, well laterally expanded jaw tips and enlarged anterior teeth.
Borja Holgado, Rodrigo V. Pêgas
doaj   +1 more source

Enigmatic dinosaur precursors bridge the gap to the origin of Pterosauria [PDF]

Nature, 2020
Pterosaurs were the first vertebrates to evolve powered flight1 and comprised one of the main evolutionary radiations in terrestrial ecosystems of the Mesozoic era (approximately 252-66 million years ago), but their origin has remained an unresolved enigma in palaeontology since the nineteenth century2-4. These flying reptiles have been hypothesized to
Martín D. Ezcurra, Sterling J. Nesbitt, Mario Bronzati, Fabio Marco Dalla Vecchia, Federico L. Agnolin, Roger B. J. Benson, Federico Brissón Egli, Sergio F. Cabreira, Serjoscha W. Evers, Adriel R. Gentil, Randall B. Irmis, Agustín G. Martinelli, Fernando E. Novas, Lúcio Roberto da Silva, Nathan D. Smith, Michelle R. Stocker, Alan H. Turner, Max C. Langer   +17 more
openaire   +5 more sources

Morphometric assessment of pterosaur jaw disparity [PDF]

Royal Society Open Science, 2018
Pterosaurs were a successful group of Mesozoic flying reptiles. They were the first vertebrate group to achieve powered flight and varied enormously in morphology and ecology, occupying a variety of niches and developing specialized feeding strategies ...
Charlie A. Navarro, Elizabeth Martin-Silverstone, Thomas L. Stubbs   +2 more
doaj   +1 more source

Pterosauria Kaup 1834

, 2022
Published as part of Allain, Ronan, Vullo, Romain, Rozada, Lee, Anquetin, Jérémy, Bourgeais, Renaud, Goedert, Jean, Lasseron, Maxime, Martin, Jeremy E., Pérez-García, Adán, Fabrègues, Claire Peyre De, Royo-Torres, Rafael, Augier, Dominique & Bailly, Gilles, 2022, Vertebrate paleobiodiversity of the Early Cretaceous (Berriasian) Angeac-Charente ...
Allain, Ronan, Vullo, Romain, Rozada, Lee, Anquetin, Jérémy, Bourgeais, Renaud, Goedert, Jean, Lasseron, Maxime, Martin, Jeremy E., Pérez-García, Adán, Fabrègues, Claire Peyre De, Royo-Torres, Rafael, Augier, Dominique, Bailly, Gilles   +12 more
openaire   +2 more sources

An azhdarchoid pterosaur humerus from the latest Jurassic (Phu Kradung Formation) of Phu Noi, north-eastern Thailand. [PDF]

Research & Knowledge, 2015
A pterosaur humerus from the Phu Kradung Formation at Phu Noi (Kalasin Province, north-eastern Thailand) is described and referred to an azhdarchoid, probably an azhdarchid.
Eric Buffetaut, Varavudh Suteethorn, Suravech Suteethorn, Uthumporn Deesri   +3 more
doaj   +1 more source

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

Anat Rec (Hoboken)
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.
Caspar KR, Gutiérrez-Ibáñez C, George H, Holtz TR, Naish D, Hurlburt GR.   +5 more
europepmc   +2 more sources

An early juvenile of Kunpengopterus sinensis (Pterosauria) from the Late Jurassic in China [PDF]

Anais da Academia Brasileira de Ciências, 2021
The Wukongopteridae is a transitional clade between the long- and short-tailed pterosaur groups, and at least ten specimens have been studied without a determined juvenile specimen. Here, we described a small-sized Kunpengopterus sinensis, less than half the size of the holotype, which is the smallest specimen in wukongopterids.
SHUNXING JIANG, XIAOLI WANG, XIAOTING ZHENG, XIN CHENG, JUNQIANG ZHANG, XIAOLIN WANG   +5 more
openaire   +5 more sources

Isolated teeth of Anhangueria  (Pterosauria: Pterodactyloidea) from the Lower Cretaceous of Lightning Ridge, New South Wales, Australia [PDF]

PeerJ, 2017
The fossil record of Australian pterosaurs is sparse, consisting of only a small number of isolated and fragmentary remains from the Cretaceous of Queensland, Western Australia and Victoria.
Tom Brougham, Elizabeth T. Smith, Phil R. Bell   +2 more
doaj   +2 more sources

Relative skull size evolution in Mesozoic archosauromorphs: potential drivers and morphological uniqueness of erythrosuchid archosauriforms

Palaeontology, Volume 65, Issue 3, May/June 2022., 2022
Abstract Little is known about the large‐scale evolutionary patterns of skull size relative to body size, and the possible drivers behind these patterns, in Archosauromorpha. For example, the large skulls of erythrosuchids, a group of non‐archosaurian archosauromorphs from the Early and Middle Triassic, and of theropod dinosaurs are regarded as ...
Jordan Bestwick, Pedro L. Godoy, Susannah C. R. Maidment, Martín D. Ezcurra, Mia Wroe, Thomas J. Raven, Joseph A. Bonsor, Richard J. Butler, Kenneth Angielczyk   +8 more
wiley   +1 more source