Genus SEMIONOTUS
Kingdom / Phylum . . . . . . . . Subphylum / Superclass . . . . Class / Subclass / Infraclass Division / Superorder / Order Suborder / Infraorder . . . . . . Superfamily / Family . . . . . . . Subfamily / Genus . . . . . . . . .	Animalia / Chordata Cephalochordata / Gnathostomata Osteichthyes / Actinopterygii / Neopterygii n.a. / n.a. / Semionotiformes n.a. / n.a. n.a. / Semionotidae n.a. / Semionotus
Age: Distribution:	Late Triassic-Early Jurassic North America, Europe
Depicted on: Liberia, 2024 (M.S. margin, fossil jaw)