Results 11 to 20 of about 593 (201)

Comments on the Pteranodontidae (Pterosauria, Pterodactyloidea) with the description of two new species [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2010
Considered one of the best known flying reptiles, Pteranodon has been subject to several reviews in the last century. Found exclusively in the Upper Cretaceous Niobrara Formation and Pierre Shale Group 11 species have been attributed to this genus ...
Alexander W.A. Kellner
doaj   +5 more sources

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

open access: yesPeerJ, 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   +2 more
doaj   +3 more sources

Premaxillary crest variation within the Wukongopteridae (Reptilia, Pterosauria) and comments on cranial structures in pterosaurs

open access: yesAnais da Academia Brasileira de Ciências
Cranial crests show considerable variation within the Pterosauria, a group of flying reptiles that developed powered flight. This includes the Wukongopteridae, a clade of non-pterodactyloids, where the presence or absence of such head structures, allied ...
XIN CHENG   +3 more
doaj   +2 more sources

Asociacion faunistica de vertebrados mesozoicos de la localidad de Galve (Teruel)

open access: yesEstudios Geologicos, 2002
Los sedimentos del Tithónico-Barremiense de la Cuenca Ibérica aflorantes en los alrededores de la localidad de Galve (Teniel), son particularmente ricos en restos de vertebrados mesozoicos.
B. Sánchez Hemández
doaj   +3 more sources

Pterosauria of the Great Oolite Group (Middle Jurassic, Bathonian) of Oxfordshire and Gloucestershire, England. [PDF]

open access: yesActa Palaeontologica Polonica, 2018
The current understanding of UK Middle Jurassic pterosaur taxonomy is under-developed, leading to it being previously considered a time of low diversity. This is despite the presence of a productive but under-studied pterosaur-bearing horizon extending over parts of Oxfordshire and Gloucestershire. This unit, informally called the Stonesfield Slate, is
O'Sullivan, Michael, Martill, David
openaire   +4 more sources

Taxonomic review of the Ornithocheirus complex (Pterosauria) from the Cretaceous of England [PDF]

open access: yesZooKeys, 2013
Over a decade after the last major review of the Cambridge Greensand pterosaurs, their systematics remains one of the most disputed points in pterosaur taxonomy.
Taissa Rodrigues, Alexander Kellner
doaj   +5 more sources

A giant specimen of Rhamphorhynchus muensteri and comments on the ontogeny of rhamphorhynchines [PDF]

open access: yesPeerJ
Rhamphorhynchus is one of the best-known pterosaurs, with well over 100 specimens being held in public collections. Most of these represent juvenile animals, and the adults known are typically around 1 m in wingspan.
David W.E. Hone, Skye N. McDavid
doaj   +3 more sources

Pterosauria

open access: yes, 2016
International ...
Vullo, Romain, Marugan-Lobon, Jesus
openaire   +2 more sources

The origin and evolution of air sacs in pterosaurs and their forerunners. [PDF]

open access: yesJ Anat
Pneumatized pterosauromorph vertebrae and their phylogenetic context. Abstract Although the existence of postcranial pneumaticity and the inferred presence of air sacs connected to the lungs are well established in Pterosauria, the origin of this system in pterosaurs remains unclear. We investigated skeletal pneumaticity in the Triassic pterosauromorph
Aureliano T   +4 more
europepmc   +2 more sources

Inside a duck-billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Aureliano T   +3 more
europepmc   +2 more sources

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