Genus GREWINGKIA
Kingdom / Phylum . . . . . . . . . Class / Subclass / Infraclass Division / Superorder / Order Suborder / Infraorder . . . . . . Superfamily / Family . . . . . . . Subfamily / Genus . . . . . . . . .	Animalia / Coelenterata Anthozoa / n.a. / n.a. n.a. / Rugosa / Stauriida Streptelasmatina / n.a. n.a. / Streptelasmatidae Streptelasmatinae / Grewingkia
Age: Distribution:	Ordovician-Silurian Global
Depicted on: Togo, 2016 (sheet margin, fossil G. canadensis)