Where: Miyagi, Japan (39.0° N, 141.8° E: paleocoordinates 46.3° N, 145.2° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Arato Formation (Hashiura Group), Oxfordian (163.5 - 157.3 Ma)

• Oxfordian (or thereabout)

• formation-level stratigraphic resolution

Environment/lithology: marine; sandy shale and sandstone

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 39648: authorized by Martin Aberhan, entered by Sabine Nürnberg on 02.06.2004

Creative Commons license: CC BY (attribution)