Matsubase Area, Mifune Group, Kyushu (Cretaceous of Japan)

Where: Kumamoto, Japan (32.6° N, 130.7° E: paleocoordinates 43.4° N, 122.8° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Mifune Group, Early/Lower Turonian (93.5 - 89.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; tuff and 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 40208: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 20.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Trigoniida - Megatrigonioidae
Pterotrigonia (Acanthotrigonia) mifunensis Tamura and Tashiro 1967 clam
possibly conspecific with P. (A.) mashikensis
Pterotrigonia (Acanthotrigonia) mashikensis Tamura and Tashiro 1967 clam
Pterotrigonia (Acanthotrigonia) higoensis Tamura and Tashiro 1967 clam