Results 131 to 140 of about 423 (165)

Bone Histology of Azendohsaurus Laaroussii: Implications for the Evolution of Thermometabolism in Archosauromorpha [PDF]

Paleobiology, 2019
Abstract This paper is aimed at constraining the phylogenetic frame of the acquisition of endothermy by Archosauromorpha. We analyzed the bone histology of Azendohsaurus laaroussii . Stylopodial and zeugopodial bones show three tissue types: (1) avascular lamellar zonal bone
Jorge Cubo, Nour-Eddine Jalil
exaly   +4 more sources

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Archosauromorpha: The Crocodylomorpha

2021
The Crocodylomorpha, one of the three main archosaurian clades, form a large and diversified group spanning from the early Late Triassic (Carnian) to the present. During its long evolutionary history, Crocodylomorphs developed three broad adaptations: terrestrial and cursorial in the earliest taxa (the Sphenosuchia) and the Cenozoic Notosuchia ...
Stéphane Jouve, Vivian de Buffrénil
exaly   +3 more sources

Archosauromorpha: Avemetatarsalia – Dinosaurs and Their Relatives

2021
The histological features of Dinosauria and its relatives (Pan-Aves, the stem-group for birds, comprising also pterosaurs and a variety of other basal avemetatarsalians) are surprisingly varied in tissue type and expression, notably with ontogenetic stage and with adult size of the taxon in question.
Holly N Woodward
exaly   +2 more sources

The Phylogenetic Position of the Pterosauria Within the Archosauromorpha [PDF]

Zoological Journal of the Linnean Society, 1996
In recent years the hypothesis that pterosaurs were the major sister-group of dinosaurs and a closely-linked hypothesis that pterosaurs evolved flight from the ground up have gained general acceptance. A cladistic analysis of the Archosauromorpha using characters presented by previous workers results in a single most parsimonious tree with the ...
S Christopher Bennett
exaly   +2 more sources

Archosauromorpha: From Early Diapsids to Archosaurs

2021
This chapter reviews and summarizes the histological data currently available on the bone histology of early (mainly Permo-Triassic) archosauromorphs, including archosauriforms and pseudosuchian (crurotarsal) archosaurs. Recent research worldwide has considerably expanded our knowledge of this subject.
de Ricqlès, Armand, Buffrénil, Vivian De, Laurin, Michel   +2 more
openaire   +1 more source

New Tanystropheids (Reptilia: Archosauromorpha) From the Triassic of Europe

Paleontological Journal, 2011
A new prolacertilian species and genus, Augustaburiania vatagini gen. et sp. nov. (Reptilia: Archosauromorpha), from the Lower Triassic of the Don River Basin is described. It is the first representative of the Tanystropheidae in the Eastern Europe and the world oldest member of this family. Another new genus (Protanystropheus gen.
Andrey G. Sennikov
exaly   +2 more sources

The Phylogenetic Position of the Pterosauria Within the Archosauromorpha Re-Examined

Historical Biology, 2013
A previous analysis of the phylogenetic position of the Pterosauria argued that pterosaurs were not closely related to dinosaurs as is generally accepted, but rather were outside the crown group Archosauria. However, that study was dismissed for the use of inappropriate methods.
S Christopher Bennett
exaly   +2 more sources

The First Ctenosauriscid (Reptilia: Archosauromorpha) From the Lower Triassic of Eastern Europe

Paleontological Journal, 2012
A new Early Triassic thecodont from the Donskaya Luka locality is described. A new species and genus of Rauisuchidae, Bystrowisuchus flerovi gen. et sp. nov., the first East European and earliest known member of the family Ctenosauriscidae is established. The taxonomy and phylogeny of Rauisuchidae and their stratigraphical and geographical distribution
Andrey G. Sennikov
exaly   +2 more sources

A New Rhynchosaur (Reptilia, Archosauromorpha) From the Upper Triassic of Eastern North America

Journal of Vertebrate Paleontology, 2020
This paper provides a description and analysis of cranial remains of a rhynchosaur from the Upper Triassic Evangeline Member of the Wolfville Formation of Nova Scotia, Canada. This material, primarily comprising jaw elements, represents the first definitive record of Late Triassic rhynchosaurs from eastern North America.
Hans-Dieter Sues
exaly   +2 more sources

The Taxonomy of the South African Proterosuchids (Reptilia, Archosauromorpha)

Journal of Vertebrate Paleontology, 1998
ABSTRACT Four different species belonging to three genera of South African proterosuchids have been described: Proterosuchus fergusi (Broom, 1903), Chasmatosaurus vanhoepeni (Haughton, 1924), Elaphrosuchus rubidgei (Broom, 1946), and Chasmatosaurus alexandri (Hoffman, 1965).
exaly   +2 more sources