	Authors	Year	Title
	Korn, Belka & Fröhlich	2004	The youngest African clymeniids (Ammonoidea, Late Devonian) - failed survivors of the Hangenberg Event. [D.Korn, Z.Belka, S.Fröhlich, M.Rücklin & J.Wendt] Lethaia 37: 307-315, 8 fig., Oslo.