Holotype:
Locality: Land administered by the Arkansas Game and Fish Commission, Hempstead County, Arksansas.
Horizon: Marlbrook Marl.
Biostratigraphy:
Age: Campanian Stage, Gallic Subepoch, Gulf Epoch, Late Cretaceous.
Material: Femur, fibula, centrale, complete distal tarsal row, 2 supernumercy
ossifications and numeorus phalanges.