Devil’s Horn Cyphaspis Moroccan Trilobite Fossils Association

Cyphaspis walteri

Trilobites Order Proetida, Family Otarionidae

Gerastos sp

Trilobites Order Proetida, Family Proetidae

Geological Time: Middle Devonian

Size: Cyphaspis: 30-37 mm long, 20-22 mm across (with spines). Gerastos: 20 mm by 10 mm Matrix: 120 mm by 185 mm.

Fossil Site: Bou Dib Formation, El Mrakib, Ma’der, Morocco

Fossil Code: 18123

Price: Sold

Description: This plate displays three fine examples of a trilobite found in the Middle Devonian deposits of El Mrakib near Ma’der, Morocco. This taxon has a distinctive pair of cephalic spines, the source of the common name. It finally received scientific description in 2014, and is now known as Cyphaspis walteri. The pustulose glabella and fine eyestalks are well displayed while the cephalic and axial spines have been prepared free of matrix, a most labor-intensive effort, one I am sure you will agree was worth it. The final trilobite is a member of the genus Gerastos. Also see this Cyphaspis walteri with the genals prepared freestanding.

Reference: Geologica Belgica (2014), 17/3-4, pp 263-275.

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