Where: Japan (33.6° N, 133.6° E: paleocoordinates 42.6° N, 135.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ryoseki Formation, Hauterivian (132.9 - 129.4 Ma)

• upper part of the formation

• group of beds-level stratigraphic resolution

Environment/lithology: estuary or bay; lithified sandstone

Size class: macrofossils

Primary reference: T. Kozai. 1986. Early Cretaceous Pulsidis (Bivalvia) from Japan. Transactions and Proceedings of the Palaeontological Society of Japan 144:479-489 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 67156: authorized by Wolfgang Kiessling, entered by Uta Merkel on 10.11.2006

Creative Commons license: CC BY (attribution)