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From Ancient Greek ἔδαφος (édaphos, “ground, soil”) + -saurus. By surface analysis, edapho- + -saurus.
Etymology from Wiktionary, CC BY-SA 4.0.
edaphosaurus
Today it means: Any of several synapsids of the genus Edaphosaurus, from the Carboniferous and Permian periods, that had a distinctive dorsal sail or crest. Full definition →