Large Spiny Koneprusia Trilobite - 2" long

This is a large, and spectacularly spiny Koneprusia dahmani trilobite quarried in the Lower Devonian deposits of Morocco. It differs from the more commonly seen Koneprusia brutoni by having a pair of spines coming off the first two axial rings as opposed to a single spine.

Preparing a trilobite like this requires dozens of hours of highly skilled work to remove the hard limestone from surrounding in layer by layer using airscribes and air abrasives, typically under high magnification. This specimen is very well prepared with many secondary spines seen coming off of the primary spines.