Where: Niigata, Japan (37.9° N, 138.5° E: paleocoordinates 38.6° N, 137.7° E)

• coordinate stated in text

When: Lower Member (Tamigigawa Formation), Zanclean (5.3 - 3.6 Ma)

• from the D unit (5.0-4.9 Ma) of the lower part (5.25-4.5 Ma); Nishihama Formation?

Environment/lithology: offshore; fine-grained mudstone

Size classes: macrofossils, microfossils

Preservation: original phosphate

Collection methods: surface (in situ),

Primary reference: H. Horikawa, L. G. Barnes, S. Miyazaki and S. Kobayashi. 1992. A primitive odobenine walrus from Pliocene deposits of Japan. International Geological Congress 29:352 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 59180: authorized by Mark Uhen, entered by Mark Uhen on 20.03.2006

Creative Commons license: CC BY (attribution)