Thesaurus: 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
Related headwords
limbsdefinitionaviandefinitionbirddefinitionbreastbonedefinitionextinctdefinitionhinddefinitionhollowdefinitionjawdefinitionknowndefinitionprimitivedefinitiontaildefinitiontriassicdefinitiontypedefinitionProto-Norse languagefamilyproto-oncogenefamilyproto-oncogenesfamilyproto-racismfamilyproto-racistfamilyproto-Reformationfamilyprotoactiniumfamilyprotoanthropologyfamilyprotoarchaeologyfamilyprotoarcheologyfamilyprotocanonicalfamilyprotocatechuicfamilyprotoceratopsfamilyprotocercalfamilyprotococcusfamily