Kawakami Area, Upper Yezo Group, Hokkaido (Cretaceous of Japan)
Where: Japan (43.1° N, 143.7° E: paleocoordinates 48.2° N, 132.9° E)
• coordinate estimated from map
• local area-level geographic resolution
When: Upper Yezo Group, Campanian (83.6 - 72.1 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine; mudstone
• containing calcareous nodules
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 39902: authorized by Martin Aberhan, entered by Sabine Nürnberg on 12.06.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Bivalvia | |
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Jupiteria (Ezonuculana) mactraeformis Nagao 1932 pointed nut clam | |