noun
primitive reptile-like fossil birds of the Jurassic or early Cretaceous
• Syn: ↑Archaeornithes
• Hypernyms: ↑class
• Member Holonyms: ↑Aves, ↑class Aves
• Member Meronyms: ↑genus Archaeopteryx, ↑genus Archeopteryx, ↑genus Sinornis, ↑genus Ibero-mesornis, ↑genus Archaeornis
Useful english dictionary. 2012.