pelycosaur

Etymology

Ancient Greek πέλυξ (pélux, “bowl, axe”) and σαῦρος (saûros, “lizard”).

pelycosaur means any of a group of basal or primitive Late Paleozoic synapsid amniotes, part of a polyphyletic grade, formerly regarded as order Pelycosauria. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

noun

Any of a group of basal or primitive Late Paleozoic synapsid amniotes, part of a polyphyletic grade, formerly regarded as order Pelycosauria.