Where: Nagano, Japan (36.5° N, 138.0° E: paleocoordinates 47.7° N, 148.0° E)
• coordinate estimated from map
• local area-level geographic resolution
When: Tsuchizawa Formation (Kuruma Group), Pliensbachian (190.8 - 182.7 Ma)
• Pliensbachian (or thereabout)
• formation-level stratigraphic resolution
Environment/lithology: marine; siliciclastic sediments
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 40333: authorized by Martin Aberhan, entered by Sabine Nürnberg on 22.06.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Falcimytilus heranirus Hayami 1958 mussel
Falcimytilus stricapillatus Hayami 1958 mussel | |
Radulonectites japonicus Hayami 1957 scallop
? Camptonectes oishii scallop | |
Eomiodon vulgaris clam | |
Cardinioides varidus Hayami 1957 clam |