| Here is a very detaild pygidium of a Odontochile hausmanni from the Pragian Layers of Prague. | |||
Location: | Praha - Kosot, Barrandium, Czech Republic | ||
| Size trilobite: | about 19 mm long | ||
| Age: | Lower Devonian, Pragian, Pra¸ské Formation (about. 412 mill. y.o.) | ||