Where: Japan (39.0° N, 141.5° E: paleocoordinates 23.9° N, 114.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Shigejizawa Member (Kanokura Formation), Wordian (266.9 - 264.3 Ma)

• Lower Kanokura

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone

Size class: macrofossils

Preservation: cast, mold/impression

Collected by K. Nakazawa

Primary reference: K. Nakazawa and N.D. Newell. 1968. Permian bivalves of Japan. Memoirs of the Faculty of Science, Kyoto University, Series of Geology and Mineralogy 35(1):1-108 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 114494: authorized by Matthew Clapham, entered by Matthew Clapham on 15.08.2011

Creative Commons license: CC BY (attribution)