Where: Japan (44.3° N, 142.0° E: paleocoordinates 50.6° N, 132.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Yezo Group, Santonian (86.3 - 83.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: cast, mold/impression

Collected by K. Muramoto

• Repository: Muramoto Collection, Mikasa

Primary reference: T. Matsumoto and K. Muramoto. 1983. Cretaceous nautiloids from Hokkaido - II. Part 2. Three nautiloid species from the Santonian and Campanian of Hokkaido. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 130:85-95 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166241: authorized by Matthew Clapham, entered by Matthew Clapham on 06.02.2015

Creative Commons license: CC BY (attribution)