Archaeornithes
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Related to Archaeornithes: Neornithes
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Noun | 1. | Archaeornithes - primitive reptile-like fossil birds of the Jurassic or early Cretaceous Aves, class Aves - (ornithology) the class of birds genus Archaeopteryx, genus Archeopteryx - a genus of fossil birds genus Sinornis - a genus of fossil birds genus Ibero-mesornis - a genus of fossil bird of the subclass Archaeornithes genus Archaeornis - a genus of fossil bird class - (biology) a taxonomic group containing one or more orders |
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