Figure 2: Geological setting of X. mauretanica.

(A) Map of the locality within Morocco. (B) Geological sketch map of the Lemdad Syncline area. Redrawn, adapted and simplified from Geyer and Landing15. (C) Generalised sedimentary log through the lower – middle Cambrian (Tata – Feijas internes Group) transition in the eastern Lemdad Syncline; compiled from data in Geyer and Landing14,15. Maps (A,B) drafted by T.W.H. using Adobe Illustrator CC 2015.3 (http://www.adobe.com/uk/products/illustrator.html).