genus Sinornis

Thesaurus

Noun

1.genus Sinornis - a genus of fossil birdsbird genus - a genus of birdsArchaeornithes, subclass Archaeornithes - primitive reptile-like fossil birds of the Jurassic or early CretaceousSinornis - 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