Results 21 to 30 of about 173 (113)

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

J 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, Müller RT, Holgado B, Kerber L, Ghilardi AM.   +4 more
europepmc   +2 more sources

An unusual pterosaur specimen (Pterodactyloidea, ?azhdarchoidea) from the early cretaceous Romualdo formation of Brazil, and the evolution of the pterodactyloid palate. [PDF]

PLoS ONE, 2012
A new and unusual specimen of a probable azhdarchoid pterosaur is described for the Early Cretaceous (Albian) Romualdo Formation of Brazil. The specimen consists of a palate that, although fragmentary, has a unique morphology differing from all other ...
Felipe L Pinheiro, Cesar L Schultz
doaj   +2 more sources

A regurgitalite reveals a new filter-feeding pterosaur from the Santana Group [PDF]

Scientific Reports
The Santana Group in Northeast Brazil has yielded a remarkable discovery: the first filter-feeding pterosaur from the tropics, named Bakiribu waridza gen. et sp. nov.
R. V. Pêgas, Tito Aureliano, Borja Holgado, William B. S. Almeida, Claude L. A. Santos, Aline M. Ghilardi   +5 more
doaj   +2 more sources

The oldest monofenestratan pterosaur from the Queso Rallado locality (Cañadón Asfalto Formation, Toarcian) of Chubut Province, Patagonia, Argentina [PDF]

Royal Society Open Science
As the first group of tetrapods to achieve powered flight, pterosaurs first appeared in the Late Triassic. They proliferated globally, and by the Late Jurassic through the Cretaceous, the majority of these taxa belonged to the clade Monofenestrata (which
Alexandra E. Fernandes, Diego Pol, Oliver W. M. Rauhut   +2 more
doaj   +2 more sources

Resistance of cervical vertebrae in response to muscular stresses in pterosaurs: implications for foraging habits and skeletal pneumatization [PDF]

PeerJ
The necks of pterosaurs were flexible and provided mobility for a relatively long skull. The varied morphologies and levels of pneumatization of their cervical vertebrae reflected differences in biomechanical behavior.
Richard Buchmann, Taissa Rodrigues
doaj   +3 more sources

Nurhachius luei, a new istiodactylid pterosaur (Pterosauria, Pterodactyloidea) from the Early Cretaceous Jiufotang Formation of Chaoyang City, Liaoning Province (China) and comments on the Istiodactylidae [PDF]

PeerJ, 2019
A new istiodactylid pterosaur, Nurhachius luei sp. nov., is here reported based on a complete skull with mandible and some cervical vertebrae from the lower part of the Jiufotang Formation of western Liaoning (China).
Xuanyu Zhou, Rodrigo V. Pêgas, Maria E.C. Leal, Niels Bonde   +3 more
doaj   +3 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   +3 more sources

Exploring the complex cranial morphology of Tupandactylus imperator (Pterodactyloidea, Tapejaridae) based on a new specimen [PDF]

Anais da Academia Brasileira de Ciências
Tupandactylus imperator, a striking tapejarid pterosaur from the Lower Cretaceous (Aptian) Crato Formation (Araripe Basin), is renowned for its extraordinary cranial crest, one of the proportionally largest among pterosaurs and, indeed, also among all ...
LUCAS CANEJO, JULIANA M. SAYÃO, ALEXANDER W.A. KELLNER   +2 more
doaj   +3 more sources

New information on the Wukongopteridae (Pterosauria) revealed by a new specimen from the Jurassic of China [PDF]

PeerJ, 2016
The Wukongopteridae is an important pterosaur group discovered from Yanliao Biota, because it combines character states seen in non-pterodactyloid and pterodactyloid pterosaurs.
Xin Cheng, Shunxing Jiang, Xiaolin Wang, Alexander W.A. Kellner   +3 more
doaj   +3 more sources

Discovery of a rare pterosaur bone bed in a cretaceous desert with insights on ontogeny and behavior of flying reptiles. [PDF]

PLoS ONE, 2014
A pterosaur bone bed with at least 47 individuals (wing spans: 0.65-2.35 m) of a new species is reported from southern Brazil from an interdunal lake deposit of a Cretaceous desert, shedding new light on several biological aspects of those flying ...
Paulo C Manzig, Alexander W A Kellner, Luiz C Weinschütz, Carlos E Fragoso, Cristina S Vega, Gilson B Guimarães, Luiz C Godoy, Antonio Liccardo, João H Z Ricetti, Camila C de Moura   +9 more
doaj   +2 more sources