Name: Onnia superba

Location: Ordovician ERFOUD (blekos) Morocco

Reference: ON1

Description:    the large cephalon of this trilobite, is used for filtring water in order to accumulate food. microscopic part of food was being stopped in the cephalic holes.

Name: Onnia superba

Location: Ordovician (Blekos) Erfoud

Reference: ON2

Description:  Gorgeous trilobite, this onnia superba has all details, especially those of the cephalon, the occiptal spine is saved completly.