Where: Yamaguchi, Japan (34.0° N, 130.9° E: paleocoordinates 41.3° N, 132.7° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Yoshimo Formation (Toyonishi Group), Neocomian (145.0 - 125.8 Ma)

• Lower Neocomian, Yoshimo Shell Beds

• formation-level stratigraphic resolution

Environment/lithology: deltaic; conglomerate 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 40511: authorized by Martin Aberhan, entered by Sabine Nürnberg on 24.06.2004

Creative Commons license: CC BY (attribution)