Korn, Klug & Reisdorf, 2000, p.72:Takhbtit West (21 krn west-northwest of Taouz):
This section does not fully expose the middle Famennian strata.  Crinoid limestones are 3 metres thick and
followed by an exposure gap of 1.5 metres concealed by sand. The Gonioelymenia Limestone is 30 cm thick.