SATO, KONISHI, HIRAYAMA & CALDWELL, 2012

Locality: Horotatezawa of Kotabetsu River, Tomamae Town, Hokkaido Island, Japan.

Horizon: Upper Yezo Group.

Biostratigraphy:

Age: Santonian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

NSM PV20024: Partial shell, hind limb and girdle.

 

Locality: Kaminosawa of Kotanbetsu River, Tomamae Town, Hokkaido Island, Japan.

Horizon: Upper Yezo Group.

Biostratigraphy:

Age: Santonian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

THU g2161: Cervical, rib and radius.

 

Locality: Nubinaizawa of Kenomai River, Monbetsu area of Hidaka Town, Hokkaido Island, Japan.

Horizon: Upper Yezo Group.

Biostratigraphy:

Age: Santonian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

THU g2163: Partial skull.

 

Locality: Hanbanosawa of Ikushunbetsu River, Mikasa City, Hokkaido Island, Japan.

Horizon: Upper Yezo Group.

Biostratigraphy:

Age: Santonian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Material: HMG 1066: Costals, centrum, and neural arch.