Genus SPHAEREXOCHUS
Kingdom / Phylum . . . . . . . . . Class / Subclass / Infraclass Division / Superorder / Order Suborder / Infraorder . . . . . . Superfamily / Family . . . . . . . Subfamily / Genus . . . . . . . . .	Animalia / Arthropoda Trilobita / n.a. / n.a. n.a. / n.a. / Phacopida n.a. / n.a. n.a. / Cheiruridae n.a. / Sphaerexochus
Age: Distribution:	Late Ordovician - Silurian North America, Scandinavia, Asia
Depicted on: Sweden, 1992 ('Service Pak' cover)