PaleoDB taxon number: 204945
Full reference: T. D. A. Cockerell. 1923. The earliest known ponerine ant. The Entomologist 56:51-52
Type specimen: UCM 15174, an exoskeleton. Its type locality is Ute Trail, Roan Plateau (station 1), which is in a Bridgerian lacustrine - large diatomite in the Green River Formation of Colorado.
Average measurements (in mm): body 12.6 x 2.4