ammonites
Loc. M-05 - River Kajisako [Kajisako Fm] (Cretaceous to of Japan)

Where: Japan (33.8° N, 134.0° E: paleocoordinates 44.0° N, 124.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kajisako Formation, Coniacian to Coniacian (89.3 - 83.5 Ma)

• STRATIGRAPHIC RELATIONS: From the Kajisako Fm, which overlies the Nagase Fm. AGE: Coniacian-Santonian, on the basis of ammonite, inoceramid, and radiolarian biostratigraphy. STRATIGRAPHIC POSITION: From the upper lithostratigraphic unit in regional section; unknown part of Kajisako Fm.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, gray shale

• ENVIRONMENT: Shallow marine siliciclastic setting.
• SPECIFIC LITHOLOGY: Dark grey shale. LITHIFICATION: Lithified, on the basis of figured specimens and preservation.

Size class: macrofossils

Preservation: mold/impression

Collection methods: COLLECTOR: Multiple collectors. REPOSITORY: Odochi Elementary School.

Primary reference: T. Matsumoto. 1982. Part V. Upper Cretaceous ammonites from the Monobe area, Shikoku. Palaeontological Society of Japan Special Papers 25:31-55 [A. Hendy/A. Hendy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87019: authorized by Austin Hendy, entered by Austin Hendy on 28.02.2009

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)