Where: Gumma, Japan (36.3° N, 138.7° E: paleocoordinates 49.5° N, 137.2° E)
• coordinate estimated from map
• local area-level geographic resolution
When: Kawarazawa Formation, Aptian to Aptian (125.0 - 100.5 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine
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 40489: authorized by Martin Aberhan, entered by Sabine Nürnberg on 24.06.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Rastellum (Arctostrea) carinatum Lamarck 1806 oyster |