subclass Archaeornithes


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Noun1.subclass 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