Here is a Diacalymene from the Onnia - Beds of Bordj in Morocco. The trilobite is by random placed on a long crinoids stem The stem of the crinoid is about 130 mm long. | |||
Location: | Bordj , Marocco | ||
Size Trilobite: | about 64 mm long | ||
Age: | Middle Ordovician, obere Ktaoua Formation, Ashgill, (about. 450 Mill. Years) |