Where: Japan (33.8° N, 134.0° E: paleocoordinates 45.3° N, 126.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Collignoniceras woollgari ammonoid zone, Kajisako Formation, Middle Turonian to Middle Turonian (93.5 - 89.3 Ma)

• STRATIGRAPHIC RELATIONS: From the Kajisako Fm, which overlies the Nagase Fm. AGE: Middle Turonian, on the basis of ammonite, inoceramid, and radiolarian biostratigraphy; Collignoniceras woollgari-Romaniceras deverianum zone. STRATIGRAPHIC POSITION: From the upper lithostratigraphic unit in regional section; basal part of Kajisako Fm.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, fine-grained sandstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: COLLECTOR: Multiple collectors. REPOSITORY: Dept. of Geology, Kyushu University, Japan; Odochi Elementary School.

Primary reference: M. Tashiro and T. Kozai. 1982. Part V. Bivalve fossils from the Upper Cretaceous of the Monobe area, Shikoku. Palaeontological Society of Japan Special Papers 25:69-92 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87012: authorized by Austin Hendy, entered by Austin Hendy on 27.02.2009

Creative Commons license: CC BY (attribution)