Ryoseki, Nankoku, Yunoki Formation, Kochi (Cretaceous of Japan)

Where: Japan (33.6° N, 133.7° E: paleocoordinates 43.5° N, 135.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Yunoki Formation, Barremian (129.4 - 125.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: estuary or bay; lithified siltstone

• brackish-water environment

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 67155: authorized by Wolfgang Kiessling, entered by Uta Merkel on 10.11.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pholadida - Corbulidae
Cephalopoda
 Ammonoidea - Megacrioceratidae