English noun: subclass Archaeornithes | |||
1. | subclass Archaeornithes (animal) primitive reptile-like fossil birds of the Jurassic or early Cretaceous | ||
Synonyms | Archaeornithes | ||
Broader (hypernym) | class | ||
Member holonym | genus Archaeopteryx, genus Archaeornis, genus Archeopteryx, genus Ibero-mesornis, genus Sinornis | ||
Member meronym | Aves, class Aves | ||