pelycosaur
English
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Etymology
[edit]Ancient Greek πέλυξ (pélux, “bowl, axe”) and σαῦρος (saûros, “lizard”).
Noun
[edit]pelycosaur (plural pelycosaurs)
- Any of a group of basal or primitive Late Paleozoic synapsid amniotes, part of a polyphyletic grade, formerly regarded as order Pelycosauria.