Genus: Oohkotokia PENKALKSI, 2014
Etymology: From the Blackfoot animate noun ooh'kotoka, meaning large stone or rock, plus Latin -ia, indicating made of or derived from, literally " Child of stone," an allusion to the all-encompassing armour. The generic name honours the Blackfeet people, on whose land the specimen was found.

Species: horneri PENKALKSI, 2014
Etymology: In honor of John R. Horner for his work on dinosaurs from Montana.
= Edmontonia rugosidens CARPENTER, 1990 (referred material)

Holotype: MOR 433

Locality: MOR Locality TM-034, northwest of Cut Bank, Montana.

Horizon: Upper Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material: A skull and fragmentary skeleton from Group 1 area of quarry.

Oohkotokia horneri (modified from PENKALKSI, 2014), Holotype: MOR 433.

Referred material:

MOR 363: A fragmentary skull from 60 m below the top of the Upper Two Medicine Formation.

NSM PV 20387: Partial skull, vertebrae, a partial pelvis, forelimb and hindlimb elements without feet, and one keeled osteoderm.

FPDMV-35: Undescribed specimen.

 

Locality: Cut Bank, Montana.

Horizon: Unknown, but believed to be Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

RTMP 2001.42.19: Partial skull with teeth, axial and limb elements, a tail club and some armour.

A) Dorsal view; B) ventral view, and C) club with handle.

 

= Euoplocephalus sp GILMORE, 1917

Locality: On the Milk River, near the type of Brachyceratops montanus, N. E. 1/4, Sec. 16, T37N, R8W, Milk River, Blackfeet Indian Reservation, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

USNM 7943: Dermal plates.

 

 

= Genus: Nova PENKALSKI, 1998
= Dyoplosaurus sp GILMORE, 1930

Locality: South side of Milk River, NW 1/4, Sec. 27, T37N, R8W, on the Blackfeet Indian Reservation, Glacier County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

USNM 11892: Top of skull and teeth.