genus sinornis

English Thesaurus

1. a genus of fossil birds (noun.animal)

hypernym	:	bird genus,
definition	:	a genus of birds (noun.animal)

member holonym	:	sinornis,
definition	:	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)

member meronym	:	archaeornithes, subclass archaeornithes,
definition	:	primitive reptile-like fossil birds of the Jurassic or early Cretaceous (noun.animal)