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Definition of Edaphosaurus
1. Noun. Heavy-bodied reptile with a dorsal sail or crest; of the late Paleozoic.
Definition of Edaphosaurus
1. Noun. any of several dinosaurs of the family Edaphosauridae, from the Carboniferous and Permian periods, that had a distinctive dorsal sail or crest ¹
¹ Source: wiktionary.com