2.2" Spiny Ceratarges Trilobite With Gerastos - Zireg, Morocco

This is a 2.2" long, spiny Ceratarges aries collected from the El Otfal Formation near Zireg, Morocco. It is very well prepared with free standing spines. It is associated with a small Gerastos trilobite. Total restoration is about 2% along repaired cracks.

There are currently about 5 different species of Certarges described from Morocco, each a slight variation on the others. A paper describing some of these species can be found at:

NEW SPECIES OF THE LICHID TRILOBITE CERATARGES FROM THE MIDDLE DEVONIAN IN MOROCCO