sinornis
English Thesaurus
1. sparrow-sized fossil bird of the Jurassic period to the Cretaceous period having a keeled breastbone and vestigial tail; found in China; considered possibly the second most primitive of all birds (noun.animal)
| hypernym | : | bird, |
| definition | : | warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings (noun.animal) |
| member meronym | : | genus sinornis, |
| definition | : | a genus of fossil birds (noun.animal) |
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