	Authors	Year	Title
	Manger & Pareyn	1979	New Carboniferous dimorphoceratid ammonoids from Algeria and Arkansas. Journal of Paleontology, 53 (3): 657-665, fig.1-3, pl.1.
	Manger	1988	Phylogeny of the Carboniferous Ammonoid Family Dimorphoceratidae. In: Wiedmann,J. & Kullmann,J. (Eds.), Cephalopods - Present and Past: 29-42, 6 text-figs., Stuttgart.