archosaur


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Related to archosaur: Lepidosaur
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Synonyms for archosaur

References in periodicals archive ?
Fossils from the Arlington Archosaur Site are helping fill in this gap, and Deltasuchus is only the first of several new species to be reported from the locality.
With this paper we report seven lungfish tooth plates recovered from Cretaceous (Cenomanian; 95 Mya) Woodbine Formation exposures at the Arlington Archosaur Site in North Central Texas (Fig.
Expert Thomas Sakmar, of Rockefeller University, New York, said: "The archosaur may have had better night vision than was generally appreciated.
He then outlines the history of nineteenth and early 20th-century ideas concerning the origin of birds in a chapter (Descent of Birds) that begins with an introduction to basal archosaurs and is followed by a somewhat puzzling brief on cladistic methodology, an indictment of the method, and a critique of the currently fashionable "theropod-bird" hypothesis.
1996): Closure of neurocentral sutures during crocodilian ontogeny: implications for maturity assessment in fossil archosaurs.
Archosaurs were among the dominant land animals during the Triassic period 250 million to 200 million years ago and include dinosaurs, crocodiles and their kin.
Solid archosaur eggshell consists of laterally juxtaposed calcium carbonate crystals (aragonitic for chelonians or calcitic for archosaurs) (Erben, 1970; Packard and DeMarco, 1995) on an organic network (Kohring and Reitner, 1996; Packard and DeMarco, 1995), regularly grouped in eggshell units that nuleate from an underlying membrana testacea (MT) in Dinosauria (Pooley, 1979, Mikhailov, 1992).
madagaskarensis shows that traits associated with herbivory were much more widespread across archosaur reptiles.
Experts suggest that such a breathing pattern likely evolved before 246 million years ago, when crocodilians split from the branch of the archosaur family tree that led to pterosaurs, dinosaurs and birds.
The scientists said it appeared after a large group of reptiles called archosaurs evolved into two branches; one, a bird-branch, evolved into dinosaurs and eventually birds, the other evolved into today's crocodiles and alligators.
The scientists said it appeared after a large group of reptiles called archosaurs evolved into two branches; one, a birdbranch, evolved into dinosaurs and eventually birds, the other evolved into today's crocodiles and alligators.
Archosaurian reptiles from the Evangeline Member comprise various taxa of crocodile-line archosaurs (Pseudosuchia) (Figs.
Today the tree is divided into three main branches (note that the pterosaurs and crurotarsans are archosaurs but not dinosaurs).