genus Hynerpeton ge·nus·hy·nerpeton uncommon noun 1. earliest fossil amphibian ever found; of the Devonian; found in Pennsylvania SynonymsHynerpetongenus Hynerpeton Related words Broader terms amphibian genus Parts Amphibia Part of Hynerpeton bassetti WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
