Authors Year Title
Chlupac & Turek 1983 Devonian goniatites from the Barrandian area, Czechoslovakia.
Rozpravy Ustredniho ustavu geologického, 46: 1-159, fig.1-30, pl.1-32; Praha.
Göddertz 1987 Devonische Goniatiten aus SW-Algerien und ihre stratigraphische Einordnung in die Conodonten-Abfolge.
Palaeontographica, Abt.A., 197 (4-6): 127-220, fig.1-42, pl.1-15; Stuttgart.
Klug, Korn & Reisdorf 2000 Ammonoid and conodont stratigraphy of the late Emsian to early Eifelian (Devonian) at the Jebel Ouaoufilal (near Taouz, Tafilalt, Morocco).
Travaux de l'Institut Scientifique, Rabat. Série Géologie & Géographie Physique, 20: 45-56, 4 text-figs., 2 pls., Rabat.
Klug 2002 Quantitative stratigraphy and taxonomy of late Emsian and Eifelian ammonoids of the eastern Anti-Atlas (Morocco).
Courier Forschungsinstitut Senckenberg, 238: 1-109, 44 fig., 13 pl., 23 tab., Frankfurt.