Subfamily Odontopleurmae Burmeister, 1843
LEONASPIS Richter and Richter, 1917. Leonaspis william si Whittington, Haragan Formation, L. Devonian, Coal County, Oklahoma (x6.2). The trilobites from this formation are particularly well preserved in translucent calcite, which contrasts against a marly matrix. This lovely, perfect specimen was prepared with airabrasive technique by Robert Carroll. (RLS coll., id.)
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