Superb, 1.7" Kettneraspis Trilobite - Lghaft, Morocco

This is a large, 1.7" long, Kettneraspis? prescheri trilobite quarried at Lghaft, Morocco. It has a large, and very distinctive occipital spine. These trilobites have typically been labeled as Leonaspis but based on more recent papers it appears to be Kettneraspis? prescheri.

A recent description of this trilobite can be found at:

Description of Kettneraspis? prescheri sp. nov. (Trilobita, Odontopleuridae) from the “couche rouge” (Pragian, Lower Devonian) in Morocco