genus protoavis
Noun
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Extinct primitive birds of the Triassic period;
70 million years before archaeopteryx (synset 101518039)is a type of: bird genus - a genus of birdsmember holonym: protoavis - most primitive avian type known; extinct bird of the Triassic having bird-like jaw and hollow limbs and breastbone with dinosaur-like tail and hind limbsbelongs to: aves, class aves - (ornithology) the class of birds
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