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Definition of Subclass Archaeornithes
1. Noun. Primitive reptile-like fossil birds of the Jurassic or early Cretaceous. 
Exact synonyms: Archaeornithes
Group relationships: Aves, Class Aves
Member holonyms: Genus Archaeopteryx, Genus Archeopteryx, Genus Sinornis, Genus Ibero-mesornis, Genus Archaeornis
Generic synonyms: Class
Group relationships: Aves, Class Aves
Member holonyms: Genus Archaeopteryx, Genus Archeopteryx, Genus Sinornis, Genus Ibero-mesornis, Genus Archaeornis
Generic synonyms: Class
Lexicographical Neighbors of Subclass Archaeornithes
| subcircuit subcircuits subcircular subclade subclades subclaim subclaims subclan subclans | 



