Taxon
	Anthracoceras discus+*
	Anthracoceras missouriense
	Anthracoceras oklahomense
	Bisatoceras greenei
	Glaphyrites moorei
	Glaphyrites welleri
	Gonioloboceratoides eliasi
	Maximites cherokeensis+
	Owenoceras bellilineatum+
	Politoceras politum+