Results 21 to 30 of about 1,528 (232)

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

The comparative energetics of the turtles and crocodiles. [PDF]

open access: yesEcol Evol, 2022
This paper discusses patterns in Dynamic Energy Budget parameters and implied traits that we found for turtles and crocodiles. We explain, for instance, why the proportionality of weight at birth with the square root of ultimate weight points to problems with water loss and nitrogen‐waste accumulation.
Marn N, Kooijman SALM.
europepmc   +2 more sources

A new azhdarchoid pterosaur from the Lower Cretaceous of Brazil and the paleobiogeography of the Tapejaridae [PDF]

open access: yesActa Palaeontologica Polonica, 2021
The Tapejaridae were an apparently worldwide distributed clade of edentulous pterosaurs, being a major component of several Lower Cretaceous terrestrial faunas.
Gabriela M. Cerqueira   +4 more
doaj   +1 more source

A large pterosaur femur from the Kimmeridgian, Upper Jurassic of Lusitanian Basin, Portugal [PDF]

open access: yesActa Palaeontologica Polonica, 2021
The pterosaur fossil record in Portugal is scarce, comprising mainly isolated teeth and rare postcranial material. Here, we describe a well-preserved right proximal femur of a pterodactyloid pterosaur from the Kimmeridgian, Upper Jurassic Praia da ...
FILIPPO BERTOZZO   +6 more
doaj   +1 more source

First record of a Late Jurassic rhamphorhynchine pterosaur from Gondwana [PDF]

open access: yesActa Palaeontologica Polonica, 2021
We describe partial remains of a non-pterodactyloid pterosaur from Upper Jurassic levels of the Atacama Desert in northern Chile. The material includes a left humerus, a possible dorsal vertebra, and the shaft of a wing phalanx, all preserved in three ...
Jhonatan Alarcón-Muñoz   +5 more
doaj   +1 more source

A new small-bodied azhdarchoid pterosaur from the Lower Cretaceous of England and its implications for pterosaur anatomy, diversity and phylogeny [PDF]

open access: yes, 2013
BACKGROUND: Pterosaurs have been known from the Cretaceous sediments of the Isle of Wight (southern England, United Kingdom) since 1870. We describe the three-dimensional pelvic girdle and associated vertebrae of a small near-adult pterodactyloid from ...
AJ Veldmeijer   +60 more
core   +17 more sources

An anhanguerian pterodactyloid mandible from the lower Valanginian of Northern Germany, and the German record of Cretaceous pterosaurs [PDF]

open access: yesActa Palaeontologica Polonica, 2021
The record of Cretaceous pterosaur remains from Germany is sparse. The material recovered to date includes the fragmentary holotypes of Targaryendraco wiedenrothi and Ctenochasma roemeri, as well as a few isolated pterodactyloid teeth and some ...
Pascal Abel   +3 more
doaj   +1 more source

First rhamphorhynchine (Pterosauria, Rhamphorhynchidae) from the Upper Jurassic of Gondwana [PDF]

open access: yesActa Palaeontologica Polonica, 2021
Jhonatan J Alarcón   +5 more
semanticscholar   +2 more sources

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