= Mesodermochelys sp cf. M. undulatus SATO, KONISHI, HIRAYAMA & CALDWELL, 2012

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

Horizon: Upper Yezo Group.

Biostratigraphy:

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

Material:

HMH 151807: Partial skull and a peripheral.

HMG 366, 367: Shell fragments.

 

Locality: Rubeshobezawa of Abeshinai River, Nakagawa Town, Hokkaido Island, Japan.

Horizon: Upper Yezo Group.

Biostratigraphy:

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

Material:

NMV 3: Proximal portion of right humerus.

 

Locality: Nio River, Kakagawa Town, Hokkaido Island, Japan.

Horizon: Osoushinai Formation, Upper Yezo Group.

Biostratigraphy:

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

Material:

NMV 50, 53: Partial carapace and femur.

 

Locality: Wakkawenbetsu River, Nakagawa Town, Hokkaido Island, Japan.

Horizon: Upper Yezo Group.

Biostratigraphy:

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

Material:

NMV 51: Neurals.

 

Locality: Akanosawa of Obirashibe River, Obira Town, Hokkaido Island, Japan.

Horizon: Upper Yezo Group.

Biostratigraphy:

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

Material:

NSM PV15017: Partial shell and skeleton

 

Locality: Horodatezawa of Kotanbetsu River, Toumamae Town, Hokkaido Island, Japan.

Horizon: Upper Yezo Group.

Biostratigraphy:

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

Material:

THU g2161: Partial carapace.

 

Locality: Haboro River, Haboro Town, Hokkaido Island, Japan.

Horizon: Upper Yezo Group.

Biostratigraphy:

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

Material:

MCM A133: Carapce.

 

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:

MCM A570: Partial carapace, and vertebrae.

 

Locality: Shionoe, Takamatsu City, Kagawa, Island, Japan.

Horizon: Izumi Group.

Biostratigraphy:

Age: Camapnian Stage, Upper Senonian subepoch, Upper Gult Epoch, Late Cretaceous.

Material:

Private Collection: Humerus.