Where: Fukui, Japan (36.2° N, 136.8° E: paleocoordinates 43.4° N, 139.6° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Shimoanama Formation (Tetori Group), Oxfordian to Oxfordian (163.5 - 145.0 Ma)

• Upper Jurassic (precisely unknown)

• 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 40232: authorized by Martin Aberhan, entered by Sabine Nürnberg on 20.06.2004

Creative Commons license: CC BY (attribution)