bn:00005394n
Noun Concept
Categories: Jurassic birds, Vertebrate subclasses
EN
Archaeornithes  subclass Archaeornithes  Archæornithes
EN
Primitive reptile-like fossil birds of the Jurassic or early Cretaceous WordNet 3.0
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EN
Primitive reptile-like fossil birds of the Jurassic or early Cretaceous WordNet 3.0 & Open English WordNet
The Archaeornithes, classically Archæornithes, is an extinct group of the first primitive, reptile-like birds. Wikipedia
Extinct primitive flying bird-like dinosaurs, e.g. Archaeopteryx Wikipedia Disambiguation
WordNet 3.0 & Open English WordNet
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