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) Liberia, 2024 (M.S. 2 margin) Maldives, 1972 (7 l., but Dimetrodon depicted) Poland, 1965 (20 g.) Sao Tome e Principe, 2003 (3000 Db.) Sierra Leone, 2024 (position 5 of sheet) Vietnam, 1990 (3000 D.) Yemen, 1990 (40 f.)   Cover, North Korea, 2004.