Where: Japan (36.7° N, 138.1° E: paleocoordinates 37.7° N, 136.9° E)

• coordinate stated in text

When: Ronji Mudstone Member (Ogawa Formation), Messinian (7.2 - 5.3 Ma)

• Originally assigned to Ronji Shale Formation (now member of Ogawa Formation).

Environment/lithology: marine; shale

Size class: macrofossils

Collection methods: Repository: Institute of Geology and Paleontology, Tohoku University

Primary reference: R. Imaizumi. 1957. Three new Miocene species of Callianassa from Nagano Prefecture. Transactions and Proceedings of the Paleontological Society of Japan, N.S 27:81-85 [C. Schweitzer/L. Baltzly/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 169970: authorized by Carrie Schweitzer, entered by Lerin Baltzly on 07.06.2015

Creative Commons license: CC BY (attribution)