Soma Area, Yamagami Formation, Honshu (Jurassic of Japan)

Where: Fukushima, Japan (37.8° N, 140.9° E: paleocoordinates 45.8° N, 145.6° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Yamagami Formation (Soma Group), Callovian (166.1 - 163.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; sandstone and shale

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 40545: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 25.06.2004

Creative Commons license: CC BY (attribution)