protoavis
English Thesaurus
1. 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 limbs (noun.animal)
| hypernym | : | bird, |
| definition | : | warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings (noun.animal) |
| member meronym | : | genus protoavis, |
| definition | : | extinct primitive birds of the Triassic period; 70 million years before archaeopteryx (noun.animal) |
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