= Chirostenotes pergracilisVARRICCHIO, 2001 (as per LONGRICH, BARNES, CLARK & MILLAR, 2013)

Locality: MOR locality TM-013, sec. 27, T37N, R8W, Landslide Butte, Glacier County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judith River Group, Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

MOR 1107: Posterior end of right mandibular ramus including the articular region.