Wordnet angielsko-polski
(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)
protoawis
(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)
protoawis