An ineradicable, large Crotalocephalina gibba, Crotalocephalina trilobite is an extinct genus of trilobite in the order Phacopida found in Morocco. Typically these trilobites have eyes low down on the sidesof the sephalon, a large bulbous glabella, and dagger-like projections on the ends of the pleura.Species: Crotalocephalina Trilobite, Age: Middle Divonian: 360 MYOLocation: Emsian, Middle Devonian, Taharajat, Djebel Oufaten, Atlas Mountains, MoroccoWeight: 1 lbs, Size: 4.25 x 3 x 1 inches