Nakagomi Area, unnamed formation, Honshu (Cretaceous of Japan)

Where: Nagano, Japan (36.2° N, 138.5° E: paleocoordinates 46.7° N, 128.0° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Late/Upper Cretaceous (100.5 - 66.0 Ma)

• unnamed formation, Upper Cretaceous (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 40234: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 20.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Pectinoidae