Where: Japan (43.1° N, 142.1° E: paleocoordinates 49.4° N, 132.9° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Kashima Formation, Santonian (86.3 - 83.6 Ma)

• Dense layer about 20 cm thick in a medium-grained sandstone bed with a thickness of about 1 meter. Presence of Inoceramus amakusensis in rocks where the fossilized shark teeth were collected indicates a Santonian age.

• bed-level stratigraphic resolution

Environment/lithology: submarine fan; lithified, glauconitic, shelly/skeletal sandstone

Size classes: macrofossils, mesofossils

Collection methods: chemical

• Repository: Mikasa City Museum

Primary reference: M. Kaneko and S. V. Solonin. 2024. The first record of the orectolobiform shark genus Cederstroemia (Elasmobranchii, Orectolobidae) in Asia (Kashima Formation, Upper Cretaceous; Oyubari area, Hokkaido, Japan). Rivista Italiana di Paleontologia e Stratigrafia 130:285-297more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 235546: authorized by Matthew Clapham, entered by Matthew Clapham on 17.07.2024

Creative Commons license: CC BY (attribution)