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
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)