Definition of archosaur in English:

noun

• A reptile of a large group that includes the dinosaurs and pterosaurs and is represented today only by the crocodilians.

  Subdivision Archosauria, subclass Diapsida

  Example sentences

  • ‘Tyrannosaurs are surprisingly common in many North American fossil beds, especially their large, serrated teeth which they shed periodically like most archosaurs.’
  • ‘The name ‘bird crocodile’ seems to nicely describe all the great archosaurs of Mesozoic, combining as they did features of both crocodiles and birds.’
  • ‘The archosaur skull includes two new fenestra (skull openings).’
  • ‘At the same time, the broad, dry plains of equatorial Pangea provided a proving ground for a strange new group of lightweight, but large-bodied, archosaurs - the dinosaurs.’
  • ‘Other archosaurs included the pterosaurs, relatives of dinosaurs but not true dinosaurs.’