Where: Japan (42.3° N, 142.7° E: paleocoordinates 51.9° N, 140.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Member M1a, lower part of the Middle Yezo Group

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, massive, fine-grained sandstone

Size class: macrofossils

Preservation: cast

Collected by Y. Miyata, Y. Kanie

• Repository: Yokosuka City Museum (YCM)

Primary reference: T. Matsumoto, T. Miyauchi, Y. Kanie, Y. Miyata, and Y. Ueda. 1984. Cretaceous nautiloids from Hokkaido - V. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 134:335-346 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166263: authorized by Matthew Clapham, entered by Matthew Clapham on 07.02.2015

Creative Commons license: CC BY (attribution)