Figure 1. Locality maps of the Rhopalocystis sites (modified after Lefebvre et al., 2016b). (1) Location of the Anti-Atlas range in northwestern Africa. (2) Simplified geological map of the Anti-Atlas showing the Ordovician outcrops and the location of the Zagora area and of localities 1773 and 2082 (Agdz area, Destombes localities). (3) Landsat view (Google Earth 2016) of the Zagora area showing the location sites 809 (=1157 = 1725), 1750 (=1737 = 1738), 2367 (Destombes localities); Z-F1, Z-F12c, and Z-F25 (new localities recently discovered).