Choshi Area, Choshi Formation, Honshu (Cretaceous of Japan)

Where: Chiba, Japan (35.7° N, 140.8° E: paleocoordinates 48.4° N, 142.2° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Choshi Formation, Aptian (125.0 - 113.0 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 39580: authorized by Martin Aberhan, entered by Sabine Nürnberg on 31.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Arcida - Parallelodontidae
 Arcida - Cucullaeidae
 Pectinida - Pectinoidae
Neithea (Neithea) syriaca Conrad 1852 scallop
Neithea (Neithella) notabilis Münster 1833 scallop
 Pectinida - Limidae
Limatula nagaoi file clam
 Ostreida - Gryphaeidae
 Ostreida - Ostreidae
 Ostreida - Malleidae
 Ostreida - Bakevelliidae
 Carditida - Astartidae
 Carditida - Carditidae
 Pholadida - Corbulidae
 Cardiida - Cardiidae
 Trigoniida - Trigoniidae
 Nuculida - Nuculidae