Where: Miyagi, Japan (39.0° N, 141.8° E)

• Paleocoordinates: 53.3° N, 171.9° E (Wright 2013)

• coordinate estimated from map

• local area-level geographic resolution

When: Niranohama Formation (Shizukawa Group), Hettangian (201.3 - 199.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: I. Hayami. 1975. A systematic survey of the Mesozoic Bivalvia from Japan. The University Museum, The University of Tokyo, Bulletin (10) [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 39646: authorized by Martin Aberhan, entered by Sabine Nürnberg on 02.06.2004

Creative Commons license: CC0 (CC0)