Genus ARCHAEOTHYRIS
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. / Eupelycosauria n.a. / n.a. n.a. / Ophiacodontidae n.a. / Archaeothyris
Age: Distribution:	Late Carboniferous North America
Depicted on: Togo, 2023 (position 2 of sheet)