edaphosaurus
(redirected from edaphosauruses)Also found in: Thesaurus.
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| Noun | 1. |  edaphosaurus - heavy-bodied reptile with a dorsal sail or crest; of the late Paleozoicsynapsid, synapsid reptile - extinct reptile having a single pair of lateral temporal openings in the skull genus Edaphosaurus - type genus of the Edaphosauridae |
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