Taxon
	Allothalassoceras bogoslovskayae
	Allothalassoceras busterense (Qualifier: sn)
	Allothalassoceras sangvorense
	Aristoceras appressum
	Aristoceras chkalovi+
	Aristoceratoides varicosus+
	Gleboceras mirandum+*
	Mapesites chautauquaensis+
	Prothalassoceras bashkiricum
	Thalassoceras gemmellaroi*