Authors Year Title
Becker 2002 Alpinites and other Posttornoceratidae (Goniatitida, Famennian).
Mitteilungen des Museums für Naturkunde Berlin, Geowissenschaftliche Reihe, 5 (002): 51-73, 6 fig., 1 tab., 3 pl., Berlin.
Korn 1999 Famennian Ammonoid Stratigraphy of the Ma'der and Tafilalt (Eastern Anti-Atlas, Morocco.
Abhandlungen der Geologischen Bundesanstalt, 54: 147-179, 9 figs., 1 tabl., 7 pls., Wien.
Korn & Klug 2002 Ammoneae Devonicae.
In: Fossilium Catalogus, I: Animalia (edit. Riegraf,W.), Pars 138:
375 p., 238 fig., 4 tab., Leiden (Backhuys Publ.).