Where: Japan (33.3° N, 132.8° E: paleocoordinates 44.8° N, 125.1° E)
• local area-level geographic resolution
When: Oguwa Formation (Shimanto Group), Turonian (93.9 - 89.8 Ma)
• STRATIGRAPHIC RELATIONS: From the Oguwa Fm (Turonian) of the lower Shimanto Group and Shimanto Supergroup, overlying the Shimoono Fm (Middle and Upper Albian) and overlain by the Furushiroyama Fm (Coniacian). AGE: Turonian. STRATIGRAPHIC POSITION: List not specified to any part of the formation.
• formation-level stratigraphic resolution
Environment/lithology: offshore; siliciclastic sediments
Size class: macrofossils
Collection methods: COLLECTOR: Collector unknown. REPOSITORY: Repository unknown.
Primary reference: Y. Teraoka, I. Obata, and I. Mizuno. 1980. Stratigraphy of the Shimanto Supergroup in the Chikanaga area, west Shikoku, with special reference to the Miyakoan and Gyliakian Series. Bulletin of the Geological Survey of Japan 31(7):307-319 [A. Hendy/A. Hendy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 65022: authorized by Austin Hendy, entered by Austin Hendy on 18.09.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Malacostraca | |
Linuparus aff. japonicus Nagao 1931 spiny lobster | |
Bivalvia | |
Inoceramus cf. hobetsensis, Inoceramus sp., Inoceramus cf. teshioensis, Inoceramus tenuistriatus, Inoceramus cf. incertus, Inoceramus cf. pedalionoides
Inoceramus sp. Sowerby 1814 clam | |
Lucinoma ? sp. Dall 1901 clam | |
Gastropoda | |
Gyrodes sp. Conrad 1860 moon snail | |
Cephalopoda | |
Romaniceras ? sp. Spath 1923 ammonite
Romaniceras cf. deverioides de Grossouvre 1889 ammonite | |
Subprionotropis cf. muramotoi ammonite | |
Mesopuzosia sp. Matsumoto 1954 ammonite | |
Anagaudryceras cf. limatum ammonite | |
Eubostrychoceras ? sp. Matsumoto 1967 ammonite | |
"Otoscaphites sp." = Yezoites, "Otoscaphites (Otoscaphites) puerculus" = Yezoites puerculus, "Otoscaphites (Hyposcaphites) cf. perrini" = Yezoites perrini
"Otoscaphites sp." = Yezoites ammonite
"Otoscaphites (Otoscaphites) puerculus" = Yezoites puerculus Jimbo 1894 ammonite
"Otoscaphites (Hyposcaphites) cf. perrini" = Yezoites perrini Anderson 1902 ammonite | |
Cymatoceras sp. Hyatt 1884 nautiloid | |
Echinoidea | |
Hemiaster uwajimensis heart urchin |