Authors Year Title
Korn, Klug & Mapes 1999 Viséan and Early Namurian Ammonoids from the Tafilalt (Eastern Anti-Atlas, Morocco).
Abhandlungen der Geologischen Bundesanstalt, 54: 345-375, 11 figs., 5 tabls., 5 pls., Wien.
Korn, Klug & Mapes 2005 The Lazarus ammonoid family Goniatitidae, the tetrangularly coiled Entogonitidae, and Mississippian biogeography.
Journal of Paleontology, 79 (2): 356-365, 9 fig., 2 tab., Lawrence, KS.
Korn, Bockwinkel & Ebbighausen 2007 Tournaisian and Viséan ammonoid stratigraphy in North Africa.
Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen:243 (2): 127-148, 15 fig., Stuttgart