noun🔗ShareペリコサウルスAny of a group of basal or primitive Late Paleozoic synapsid amniotes, part of a polyphyletic grade, formerly regarded as order Pelycosauria."While not technically dinosaurs, the sail-backed Dimetrodon is a well-known example of a pelycosaur. "厳密には恐竜ではありませんが、背中に帆を持つディメトロドンは、ペリコサウルスのよく知られた例です。biologyanimalorganismsciencehistoryChat with AIVocabulary GamePractice Reading
