As nouns the difference between ichthyosaur and archosaur
is that ichthyosaur is any of several extinct fishlike reptiles, of the order while archosaur is (biology) any reptile of the taxon archosauria ; includes the extinct dinosaurs, plesiosaurs, pterosaurs and ichthyosaurs and the modern crocodiles.
archosaur
English
Noun
(
en noun)
(biology) Any reptile of the taxon Archosauria ; includes the extinct dinosaurs, plesiosaurs, pterosaurs and ichthyosaurs and the modern crocodiles
Hyponyms
* See also