Authors Year Title
Garcia-Alcalde, Arbizu & García_López 1990d Devonian stage boundaries (Lochkovian/Pragian, Pragian/Emsian, and Eifelian (Givetian) in the Cantabric region (NW Spain).
Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 180 (2): 177-207, fig.1-12; Stuttgart.
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.
Klug, Meyer & Richter 2008 Soft-tissue imprints in fossil and Recent cephalopod septa and septum formation. [Klug,C., Meyer, E.P., Richter, U. & Korn, D.]
Lethaia 10/1111, 1-16, 10 fig., 1 tab.
Korn & Klug 2002 Ammoneae Devonicae.
In: Fossilium Catalogus, I: Animalia (edit. Riegraf,W.), Pars 138:
375 p., 238 fig., 4 tab., Leiden (Backhuys Publ.).
Petter 1959 Goniatites dévoniennes du Sahara.
Publ. Serv. Carte géol. Algérie, n.s., Paléont., 2: 1-313, fig.1-58, pl.1-26; Alger.