Genus GOLDRINGIA
Kingdom / Phylum . . . . . . . . . Class / Subclass / Infraclass Division / Superorder / Order Suborder / Infraorder . . . . . . Superfamily / Family . . . . . . . Subfamily / Genus . . . . . . . . .	Animalia / Mollusca Cephalopoda / Endoceratoidea / n.a. n.a. / n.a. / Nautilida n.a. / n.a. Tainocerataceae / Rutoceratidae n.a. / Goldringia
Age: Distribution:	Middle Devonian North America
Depicted on: Cover, Russia, 1994, centenary of the birth of A.I. Oparin, reconstruction of G. cyclops at left.