Where: Japan (43.0° N, 144.4° E: paleocoordinates 45.3° N, 140.8° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Soun Mudstone Member (Teshibetsu Formation), Late/Upper Eocene (37.2 - 33.9 Ma)

• STRATIGRAPHIC RELATIONS: From Shakubetsu Fm, Urahoro Gp (Middle Eocene), which underlies the Charo Fm pf the Ombetsu Gp and overlies the Ponshityakara Sst of the Shitikara Fm. THICKNESS: From unit which reaches a thickness of 230-240 m. AGE: Late Eocene based on molluscan biostratigraphy. STRATIGRAPHIC POSITION: Composite checklist for unit from local area.

• formation-level stratigraphic resolution

Environment/lithology: marginal marine; lithified siliciclastic sediments

Size class: macrofossils

Collection methods: COLLECTOR: T. Mizuno and Hyakkoku (c. 1960). REPOSITORY: Unknown, not stated in text.

Primary reference: A. Mizuno. 1964. Summary of the Paleogene molluscan faunas in North Japan. Geological Survey of Japan Report 207 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 71047: authorized by Austin Hendy, entered by Austin Hendy on 15.04.2007

Creative Commons license: CC BY (attribution)