Where: Japan (42.8° N, 143.8° E: paleocoordinates 43.4° N, 142.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Ishiizawa Formation, Middle Miocene (16.0 - 11.6 Ma)

• STRATIGRAPHIC RELATIONS: From Ishiizawa Fm, which unconformably overlies the Tokomuro Fm (Middle Miocene). AGE: Middle Miocene on the basis of molluscan biostratigraphy. Approximately correlated with the lower part of the Togeshita Formation. STRATIGRAPHIC POSITION: From unknown position in regional section.

• formation-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified siliciclastic sediments

Size class: macrofossils

Collection methods: COLLECTOR: Presumably K. Amano (c. 1980's). REPOSITORY: Joetsu University of Education, Japan (JUE)

Primary reference: K. Amano. 1986. Age and characteristics of the so-called "Atsunai-Togeshita fauna" in Hokkaido. Paleontological Society of Japan Special Papers 29:187-198 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 81704: authorized by Austin Hendy, entered by Austin Hendy on 11.07.2008

Creative Commons license: CC BY (attribution)