Ordovician

Kataoua Formation

Mecissi, Anti-Atlas Mountains, Morocco

Large, mystery animal similar to Eldonia from the Burgess Shale now called a paropsonomid. Excellent 3.8 inch

Problematica, Paropsonomid.

See: Alessandrello, Anna, and Giacomo Bracchi. “Eldonia berbera n. sp., a new species of the enigmatic genus Eldonia Walcott, 1911 from the Rawtheyan (Upper Ordovician) of Anti-Atlas (Erfoud, Tafilalt, Morocco).” Atti della Società italiana di scienze naturali e del museo civico di storia naturale di Milano 144.2 (2003): 337-358.