Where: Gifu, Japan (36.5° N, 137.2° E: paleocoordinates 43.6° N, 140.3° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Sugisaki Sandstone Formation (Tetori Group), Oxfordian (161.2 - 155.7 Ma)

• Oxfordian (or thereabout)

• formation-level stratigraphic resolution

Environment/lithology: marine; 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 39625: authorized by Martin Aberhan, entered by Sabine Nürnberg on 01.06.2004