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plural archosaurs
A reptile of the taxon Archosauria, which includes modern crocodilians and birds, as well as the extinct pterosaurs, non-avian dinosaurs and other taxa. quotations examples
The predominance of archosaurs over other reptiles might be a consequence of their more advanced mode of locomotion compared with their relatives.
2012, Winand Brinkmann, Kenneth De Baets, editors, Paleontological Museum of the University of Zürich: Exhibition Guide, Paleontological Institute and Museum of the University of Zürich, page 77