Takato Area, Todai Formation, Honshu (Cretaceous of Japan)

Where: Nagano, Japan (35.8° N, 138.1° E: paleocoordinates 43.9° N, 140.2° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Todai Formation, Neocomian (145.0 - 130.0 Ma)

• Upper Neocomian

• 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 40552: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 25.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Trigoniida - Megatrigonioidae
 Trigoniida - Trigoniidae