Yayoi, Hokkaido (Eocene of Japan)

Where: Japan (43.2° N, 141.9° E: paleocoordinates 45.5° N, 138.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Poronai Formation, Late/Upper Eocene (37.2 - 33.9 Ma)

Environment/lithology: deep subtidal; mudstone

• dark grey mudstone

Size class: macrofossils

Primary reference: K. Hryniewicz, K. Amano, R. G. Jenkins and S. Kiel. 2017. Thyasirid bivalves from Cretaceous and Paleogene cold seeps. Acta Palaeontologica Polonica 62(4):705-728 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191325: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 23.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Cardiida - Vesicomyidae
Hubertschenckia ezoensis Yokoyama 1890 clam
 Lucinida - Thyasiridae
Conchocele taylori Hickman 2015 clam