Endolobus sp.

Korn, Dieter & Klug, Christian, 2023, Early Carboniferous coiled nautiloids from the Anti-Atlas (Morocco), European Journal of Taxonomy 885, pp. 156-194 : 173

Endolobus sp.

Fig. 12

Material examined

MOROCCO • 1 specimen; Anti-Atlas, southeast of Gara el Itima , 31.5 km east-northeast of Taouz ; Zrigat Formation; Korn & Ebbighausen 2007 Coll.; MB.C.31290 .

Description

Specimen MB.C.31290 is a phragmocone fragment of a little less than a quarter of a whorl ( Fig. 12 ) and consisting of seven chambers. It has a whorl height of 15 mm and a ww/wh ratio of 1.90. The venter is broadly rounded and separated from the rounded umbilical wall by a narrowly rounded umbilical margin. There is a shallow dorsal imprint zone (IZR ~ 0.20). The suture lines are rather densely arranged; they show a very wide and shallow lobe on the flanks and venter and a shallow, broadly rounded internal lobe.

Figures

Fig. 12. Endolobus sp. from SE of Gara el Itima; specimen MB.C.31290 (Ebbighausen & Korn 2004 Coll.). A. Whorl profile. B. Lateral and ventral views. C. Suture line, at ww =28.0 mm, wh=14.5 mm. Scale bar units= 1 mm.