Archosaurus - Wikipedia
Archosaurus (meaning "ruling lizard") is an extinct genus of carnivorous proterosuchid archosauriform reptile. [1] Its fossils are dated to the latest Permian of Russia and Poland, it is one of the earliest known archosauriforms.
Archosaur - Wikipedia
Although broadly classified as reptiles, which traditionally exclude birds, the cladistic sense of the term includes all living and extinct relatives of birds and crocodilians such as non-avian dinosaurs, pterosaurs, phytosaurs, aetosaurs and rauisuchians as well as many Mesozoic marine reptiles.
Archosaur | Characteristics & Phylogeny | Britannica
archosaur, (subclass Archosauria), any of various reptiles, including all crocodiles and birds and all descendants of their most recent common ancestor. Archosaurs (“ruling reptiles”) are members of a subclass that also includes the dinosaurs, the pterosaurs (flying reptiles), and several groups of extinct forms, mostly from the Triassic ...
Archosaurus | Triassic, Reptile, Carnivore | Britannica
Archosaurus, early genus of reptiles found as fossils in Middle and Late Permian deposits of Europe (265 million to 251 million years ago). Archosaurus typifies the progressive changes occurring in reptilian structure that eventually led to their dominance as the major vertebrates.
The earliest bird-line archosaurs and the assembly ... - Nature
Apr 12, 2017 · New reptile shows dinosaurs and pterosaurs evolved among diverse precursors. The archosaur species Teleocrater rhadinus, part of the new clade Aphanosauria, is an example of the earliest ...
Pelycosaurs, Archosaurs, and Therapsids - ThoughtCo
Aug 27, 2024 · If you’re curious about what was before dinosaurs, pelycosaurs, archosaurs, and therapsids were the main life forms during this time period.
Archosauria - University of California Museum of Paleontology
Archosauria (the "ruling reptiles") is a major group of diapsids, differentiated from the other diapsids by the presence of single openings in each side of the skull, in front of the eyes (antorbital fenestrae), among other characteristics. This continues the tetrapod trend of the reduction of skull bones by the fusion of multiple bones and the ...
A Tale of Three Sails - National Geographic
Oct 20, 2011 · A recent study points to bizarre, sail-backed reptiles as the earliest definitive archosaurs — one of the most successful and important evolutionary dynasties in the history of life on earth.
Respiratory evolution in archosaurs | Philosophical ...
Jan 13, 2020 · The Archosauria (ruling reptiles) are a highly successful group of tetrapod vertebrates, represented today by birds and crocodylians. Crown-group archosaurs originated over 250 Ma, just prior to the Permo-Triassic Mass Extinction [1].
Anatomy, phylogeny and palaeobiology of early archosaurs and ...
Jun 11, 2013 · Archosauria include two extant clades, crocodylians and avians. However, the diversification of the avian and crocodylian crown groups are relatively recent events that began during the Late Cretaceous (Brochu 2001, 2003; Clarke et al. 2005), less than 100 Ma ago. These crown diversifications are shallow in time compared to the much deeper ...