Where: Japan (44.1° N, 141.9° E: paleocoordinates 51.8° N, 134.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Saku Formation, Middle Turonian (93.5 - 89.3 Ma)

• From the Scaphites-Schichten according to Yabe (1910), possibly from the lower to the middle Turonian unit of the Saku Formation according to Tanabe (2022) (Saku Formation shown as middle-upper Turonian on strat column in Tanabe, 2022).

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, sandy siltstone

Size class: macrofossils

Preservation: mold/impression

Collected by Yabe

• Repository: University Museum, The University of Tokyo, Tokyo, Japan (UMUT)

Primary reference: K. Tanabe. 2022. Late Cretaceous dimorphic scaphitid ammonoid genus Yezoites from the circum-North Pacific regions. Paleontological Research 26:233-269 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 226945: authorized by Matthew Clapham, entered by Matthew Clapham on 13.08.2022

Creative Commons license: CC BY (attribution)