Where: Japan (33.5° N, 133.3° E: paleocoordinates 44.5° N, 134.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tosakamo Formation, Aptian (125.0 - 113.0 Ma)

• lower member of the Tosakamo Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone

Size class: macrofossils

Primary reference: M. Tashiro and T. Matsuda. 1986. Lower Cretaceous bivalves from the Sakawa area, Shikoku. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 142:366-392 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69057: authorized by Wolfgang Kiessling, entered by Uta Merkel on 16.02.2007

Creative Commons license: CC BY (attribution)