This is a wonderful specimen of Kettneraspis williamsi from the Devonian of Oklahoma. The trilobite is inflated and well articulated. Both free cheeks are present and tightly attached. The well-preserved trilobite is quite prone and exhibits excellent detail. The protruding eyes are easily seen, and the long, sweeping genal spines and pleural spines are complete to the very tips. Even the ''fringes'' on the free cheeks are intact. The caramel-colored bug contrasts nicely with the cream-colored matrix, and the trilobite displays beautifully on the large (3.6'' X 3.9'') rectangular plate. This is a great example of this spiny trilobite from the Haragan Formation.