Loc. A (basal facies), [Akasawa Silt] (Pleistocene of Japan)

Where: Japan (34.7° N, 137.3° E: paleocoordinates 34.8° N, 137.1° E)

• outcrop-level geographic resolution

When: Akasawa Silt Formation (Toyohashi Group), Pleistocene (2.6 - 0.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Akasawa Silt, which overlies the Takatsuka Gravel, and is overlain by the Toshima Sand. AGE: Pleistocene. STRATIGRAPHIC POSITION: From basal facies of the formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; unlithified, sandy siltstone

• SPECIFIC LITHOLOGY: Sandy siltstone. LITHIFICATION: Unlithified.

Size class: macrofossils

Collected by Hayasaka

Collection methods: surface (in situ),

• COLLECTOR: S. Hayasaka. REPOSITORY: Possibly Tohoku University.

Primary reference: S. Nomura. 1932. Mollusca from the raised beach deposits of the Kwantô region. Science reports of the Tohoku Imperial University. 2nd series, Geology 15(2):65-141 [A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 96946: authorized by Austin Hendy, entered by Austin Hendy on 13.07.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Not an authoritative publication, with antiquated nomenclature, but with species-resolution identifications.
Gastropoda
 Cerithioidea - Batillariidae
 Neogastropoda - Muricidae
Rapana thomasiana murex snail
 Trochoidea - Trochidae
Bivalvia
 Ostreida - Ostreidae
"Ostrea (Crassostrea) gigas" = Crassostrea gigas
"Ostrea (Crassostrea) gigas" = Crassostrea gigas Thunberg 1793 giant Pacific oyster
 Pectinida - Anomiidae
 Cardiida - Cardiidae
Fulvia mutica Reeve 1844 cockle
 Cardiida - Tellinidae
 Cardiida - Psammobiidae
 Cardiida - Trapezidae
 Cardiida - Veneridae
 Cardiida - Anatinellidae
 Cardiida - Corbiculidae
Corbicula japonica clam
SUBSPECIES: Corbicula japonica sandaiformis