protoavis

Noun
  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 (synset 101518224)
    is a type of: bird - warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
    belongs to: genus protoavis - extinct primitive birds of the Triassic period; 70 million years before archaeopteryx

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