Dicranurus hamatus elegantus Trilobite from Oklahoma

Dicranurus hamatus elegantus is an Odontopleurid trilobite of Order Lichida (or the newer erected Order Odontopleurida if you prefer) from the Lower Devonian Haragan Formation of Oklahoma. This Lichid is highly sought by collectors due to its elegant array of spines, and because only one to a few are found each year, and only with much back breaking effort. If you think you have seen a trilobites that looks the same coming from North Africa, you would be correct, and that would be Dicranurus monstrosus which tends to be somewhat larger in most cases and comes from the Atlas Mountains of Morroco.

Also see: Oklahoma Trilobites