Also known as Loc. N-6
Where: Japan (33.8° N, 134.0° E: paleocoordinates 46.9° N, 127.3° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Nagase Formation, Cenomanian (100.5 - 93.9 Ma)
• STRATIGRAPHIC RELATIONS: From the Nagase Fm, which is overlain by the Kajisako Fm. AGE: Cenomanian, on the basis of ammonite, inoceramid, and radiolarian biostratigraphy. STRATIGRAPHIC POSITION: From lower lithostratigraphic unit in regional section; near top of middle part of Nagase Fm.
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, medium-grained, coarse sandstone
Size class: macrofossils
Preservation: mold/impression
Collection methods: COLLECTOR: Multiple collectors. REPOSITORY: Dept. of Geology, Kyushu University and Odochi Elementary School, Japan.
Primary reference: M. Tashiro and T. Kozai. 1982. Part V. Bivalve fossils from the Upper Cretaceous of the Monobe area, Shikoku. Palaeontological Society of Japan Special Papers 25:69-92 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 87006: authorized by Austin Hendy, entered by Austin Hendy on 27.02.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Calycoceras cf. orientale" = Calycoceras (Newboldiceras) orientale
"Calycoceras cf. orientale" = Calycoceras (Newboldiceras) orientale Matsumoto et al. 1957 ammonite | |
Bivalvia | |
Septifer mifunensis Tamura 1976 mussel | |
Glycymeris (Pseudoveletuceta) mifunensis Tashiro 1971 clam | |
Pseudotrigonia (Scabrotrigonia) monobeana, "Pseudotrigonia (Acanthotrigonia) higoensis" = Pterotrigonia (Acanthotrigonia) higoensis, "Pseudotrigonia (Acanthotrigonia) mashikensis" = Pterotrigonia (Acanthotrigonia) mashikensis
Pseudotrigonia (Scabrotrigonia) monobeana Tashiro and Kozai 1982 clam
"Pseudotrigonia (Acanthotrigonia) higoensis" = Pterotrigonia (Acanthotrigonia) higoensis Tamura and Tashiro 1967 clam
"Pseudotrigonia (Acanthotrigonia) mashikensis" = Pterotrigonia (Acanthotrigonia) mashikensis Tamura and Tashiro 1967 clam | |
Cymbophora okadakensis Tamura 1977 clam | |
Veloritina cf. matsumotoi Tamura 1977 clam |