Ponbetsu (Mikasa) (Cretaceous of Japan)

Where: Hokkaido, Japan (43.3° N, 142.0° E: paleocoordinates 52.7° N, 139.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Yezo Group, Albian (113.0 - 100.5 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; lithified carbonate

Size class: macrofossils

Preservation: mold/impression

Primary reference: S. Kiel, K. Amano, and R. G. Jenkins. 2008. Bivalves from Cretaceous cold-seep deposits on Hokkaido, Japan. Acta Palaeontologica Polonica 53(3):525-537 [M. Aberhan/D. Wellmanns/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116906: authorized by Martin Aberhan, entered by Daniel Wellmanns on 14.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Solemyida - Solemyidae
Acharax mikasaensis n. sp. Awning Clam
 Lucinida - Thyasiridae
Thyasira tanabei Kiel et al. 2008 clam
 Lucinida - Lucinidae