Yatsushiro Area, Hachiryusan Formation, Kyushu (Cretaceous of Japan)

Where: Kumamoto, Japan (32.5° N, 130.6° E: paleocoordinates 39.7° N, 132.6° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Hachiryusan Formation, Neocomian (145.0 - 130.0 Ma)

• Upper Neocomian

• 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 40599: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 26.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Trigoniida - Megatrigonioidae