Where: Teshio, Japan (44.8° N, 142.0° E: paleocoordinates 51.1° N, 132.1° E)
• coordinate estimated from map
• local area-level geographic resolution
When: Upper Yezo Group, Santonian (86.3 - 83.6 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine; mudstone
Size class: macrofossils
Preservation: cast, mold/impression
Primary reference: I. Hayami. 1975. A systematic survey of the Mesozoic Bivalvia from Japan. The University Museum, The University of Tokyo, Bulletin (10) [M. Aberhan/S. Nurnberg/S. Nurnberg]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 40126: authorized by Martin Aberhan, entered by Sabine Nürnberg on 18.06.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Jupiteria (Ezonuculana) mactraeformis Nagao 1932 pointed nut clam | |
Acila (Truncacila) hokkaidoensis Nagao 1932 divaricate nutclam | |
Pinna (Pinna) saitoi oyster | |
? Anomia subovalis jingle | |
"Glycymeris (Glycymerita) multicostata" = Tucetona (Bellaxinaea) multicostata
"Glycymeris (Glycymerita) multicostata" = Tucetona (Bellaxinaea) multicostata Sowerby 1833 clam | |
Myrtea ezoensis Nagao 1957 clam |