Loc. 140 [Okinoshima Fm] (Eocene of Japan)

Where: Japan (32.9° N, 129.6° E: paleocoordinates 37.8° N, 125.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Okinoshima Formation, Late/Upper Eocene (37.2 - 33.9 Ma)

• STRATIGRAPHIC RELATIONS: From the Okinoshima Fm, which conformably overlies the Hashima Fm and is unconformably overlain by the Iojima Fm. AGE: Late Eocene according to foraminiferal biostratigraphy in Asano (1958), and correlated to the Sakasegawa Shale. Kobayashi and Kamada (1959) suggest that the formation could even range from Middle-Late Eocene. STRATIGRAPHIC POSITION: From bed of unknown thickness within 150 m thick formation.

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified siliciclastic sediments

• ENVIRONMENT: Neritic sediment probably at depth of 40-50 m. Subtropical warm sea.
• SPECIFIC LITHOLOGY: Lithology not stated in text, but is likely siliciclastic. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Kamada

Collection methods: surface (in situ),

• COLLECTOR: Y. Kamada and graduates students Nagasaki University, c. 1950's. REPOSITORY: Nagasaki and Tokyo University.

Primary reference: T. Kobayashi and Y. Kamada. 1959. An Eocene Nautiloid from Kyushu, Japan. Japanese Journal of Geology and Geography 30:105-125 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 81231: authorized by Austin Hendy, entered by Austin Hendy on 11.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for Bivalvia, Gastropoda, and Cephalopoda. NOMENCLATURE: Authoritative publication for cephalopods, but general for other taxa. Nomenclature is somewhat antiquated, but identified to species-resolution.
 Carditida - Carditidae
"Venericardia nipponica" = Venericardia (Venericor) nipponica
"Venericardia nipponica" = Venericardia (Venericor) nipponica Yokoyama 1911 clam
 Cardiida - Veneridae