Where: Hokkaido, Japan (43.4° N, 141.4° E: paleocoordinates 43.7° N, 140.2° E)

• coordinate estimated from map

When: Lower Mud Member (Mashike Formation), Late/Upper Miocene (11.6 - 5.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; mudstone

Size class: macrofossils

Primary reference: H. Horikawa and I. Fujita. 1972. A fossil dolphin from the Miocene deposits of Kabato Mountainland, Hokkaido, Japan. Earth Science 26:176-177 [M. Uhen/M. Uhen] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 75993: authorized by Mark Uhen, entered by Mark Uhen on 08.11.2007