Where: Japan (43.3° N, 142.0° E: paleocoordinates 50.3° N, 133.6° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Kashima Formation, Early/Lower Coniacian (89.3 - 85.8 Ma)
• STRATIGRAPHIC RELATIONS: From an unnamed lithostratigraphic unit, given as the Kashima Formation by Tanabe (2022), which overlies the Turonian Mikasa FOrmation. AGE: Early-Middle Coniacian, based on ammonite and inoceramid biostratigraphy. STRATIGRAPHIC POSITION: From near top of local regional section
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, silty siltstone
Size class: macrofossils
Preservation: cast, mold/impression
Collection methods: COLLECTOR: Tanabe et al. (1977). REPOSITORY: Dept. of Geology, Kyushu University, Japan.
Primary reference: K. Tanabe. 1977. Mid-Cretaceous scaphitid ammonites from Hokkaido. Palaeontological Society of Japan Special Papers 21:11-22 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 86994: authorized by Austin Hendy, entered by Austin Hendy on 26.02.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Otoscaphites (Hyposcaphites) matsumotoi" = Yezoites matsumotoi, "Otoscaphites (Otoscaphites) klamathensis" = Yezoites pseudoaequalis, Scaphites pseudoequalis
"Otoscaphites (Hyposcaphites) matsumotoi" = Yezoites matsumotoi Tanabe 1977 ammonite
"Otoscaphites (Otoscaphites) klamathensis" = Yezoites pseudoaequalis Yabe 1910 ammonite
Scaphites pseudoequalis ammonite |