Genus CRASSIGYRINUS
Kingdom / Phylum . . . . . . . . Subphylum / Superclass . . . . Class / Subclass / Infraclass Not formally classified Subfamily / Genus . . . . . . . . .	Animalia / Chordata Cephalochordata / Gnathostomata Amphibia / Labyrinthodontia / n.a. n.a. / Crassigyrinus
Age: Distribution:	Early Carboniferous Europe
Depicted on: Nicaragua, 1999 (position 5 of sheet 2, misnamed Thadeosaurus)