Where: Iwate, Japan (39.9° N, 142.0° E: paleocoordinates 54.0° N, 138.8° E)
• coordinate estimated from map
• local area-level geographic resolution
When: Aketo Formation (Miyako Group), Early/Lower Albian (112.0 - 109.0 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine; calcareous sandstone
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 40317: authorized by Martin Aberhan, entered by Sabine Nürnberg on 22.06.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Anthonya subcantiana clam | |
Nagaoella corrugata venus clam | |
Mesosaccella insignis pointed nut clam |