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