Genus EDAPHOSAURUS
Kingdom / Phylum . . . . . . . . Subphylum / Superclass . . . . Class / Subclass / Infraclass Division / Superorder / Order Suborder / Infraorder . . . . . . Superfamily / Family . . . . . . . Subfamily / Genus . . . . . . . . .	Animalia / Chordata Cephalochordata / Gnathostomata Reptilia / Synapsida / n.a. n.a. / n.a. / Pelycosauria n.a. / n.a. n.a. / Edaphosauridae n.a. / Edaphosaurus
Age: Distribution:	Late Carboniferous - Early Permian North America, Europe
Depicted on: Antigua & Barbuda, 1988 (4 c. and 60 c.) Bulgaria, 1990 (13 c. and set in sheet) Cambodia, 1986 (0,20 R.) Chad, 2023 (M.S. margin) Comoros, 1994 (position 1 of sheet) Fujeira, 1968 (15 d. and 1 R., air mail, as Dimetrodon) Fujeira, 1972 (85 d., as Naosaurus) Guinea-Bissau, 1989 (100 P.) Korea (North), 1994 (Onsong fish sheet margin) Korea (North), 2004 (sheet margin, also on cover) Maldives, 1972 (7 l., but Dimetrodon depicted) Poland, 1965 (20 g.) Sao Tome e Principe, 2003 (3000 Db.) Vietnam, 1990 (3000 D.) Yemen, 1990 (40 f.)   Cover, North Korea, 2004.