Genus: Monoclonius COPE, 1876 (nomen dubium)

Species: ? lowei STERNBERG, 1940

Holotype: NMC 8790

Locality: Near south-central part of NE 1/4, sec.2, T5, R5, west of 4th mer., About 7 miles southeast of Manyberries, Forty Mile County, Alberta Province, Canada.

Horizon: Dinosaur Park Formation, upper Judith River Group.


Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.

Material: Skull complete except for rostral, left maxilla, quadrate and quadratojugal and palatial bones.

Note: Shows possible trauma to the right side of the parietal (TANKE & ROTHSCHILD, 2010)