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Related to protoavis: archeopteryx
(Palaeontology) a bird-like creature from the late Triassic period
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|Noun||1.||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 limbs|
bird - warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
genus Protoavis - extinct primitive birds of the Triassic period; 70 million years before archaeopteryx