Wordnet polsko-angielski
(large primitive reptile having a tall spinal sail
of the Permian or late Paleozoic in Europe and North America)
pelycosaur
synonim: pelykozaur
(large primitive reptile having a tall spinal sail
of the Permian or late Paleozoic in Europe and North America)
pelycosaur
synonim: pelykozaur