Genus WELLESIOSAURUS
Kingdom / Phylum . . . . . . . . Subphylum / Superclass . . . . Class / Subclass / Infraclass Division / Superorder / Order Suborder / Infraorder . . . . . . Superfamily / Family . . . . . . . Subfamily / Genus . . . . . . . . .	Animalia / Chordata Cephalochordata / Gnathostomata Reptilia / Diapsida / Lepidosauromorpha n.a. / Sauropterygia / Plesiosauria n.a. / n.a. Plesiosauroidea / Plesiosauridae n.a. / Wellesiosaurus
Age: Distribution:	Late Cretaceous Europe, Asia
Depicted on: Japan, 1977 (50 Y., skeleton)