Species: edwardsorum OSTROM, 1970
Etymology: Named for Nell and Tom Edwards of Bridges, Montana, in appreciation
of the hospitality and assistance they gave to Yale field crew.
Holotype: AMNH 3032
Locality: AMNH 32-3, NE 1/4, Sec. 20, T5S, R28E, E fork of Beauvaix Creek, Big Horn County, Montana.
Horizon: Cloverly Formation.
Biostratigraphy:
Age: Cashenranchian, Aptian-Albian Stage, middle Gallic subepoch, lower Cretaceous Epoch, Early Cretaceous.
Material: Fragmentary skeleton with armor.
Note: 17-18 articulated caudal vertebrae from the distal portion of the tail including the terminal vertebrae with the most distal 9-10 vertebrae fused together and the tail has a kink ventrally at the ?11th vertebra in the series, and the distal portion of the fused vertebral mass are offset to the left at this point. (ARBOUR & CURRIE, 2011)