This wonderful, detailed pair of spiny trilobites (in their limestone matrix) is from the world famous Black Cat Mountain Quarry in Oklahoma. Both of their occipital spines are present, a detail lost on many. It was carefully, meticulously, expertly prepared by Bob Carroll in 2005 to expose each and every tiny detail. The Black Cat Mountain Quarry produces a limited amount of trilobites of the finest quality each year.
Genus / Species: Kettneraspis williamsi
Age: Lower Devonian
Location: Black Cat Mountain, near Clarita, Coal County, Oklahoma, USA
Matrix Dimensions: 3.4″ long x 3.3″ wide x 1.9″ thick
Weight: 1.1 lbs