Abeshinai Area, Upper Yezo Group, Hokkaido (Cretaceous of Japan)

Where: Teshio, Japan (44.8° N, 142.0° E: paleocoordinates 49.6° N, 130.4° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Upper Yezo Group, Campanian (83.6 - 72.1 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; mudstone

• containing calcareous nodules

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 39821: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 07.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Arcida - Glycymerididae
"Glycymeris (Glycymerita) multicostata" = Tucetona (Bellaxinaea) multicostata
"Glycymeris (Glycymerita) multicostata" = Tucetona (Bellaxinaea) multicostata Sowerby 1833 clam
 Ostreida - Pinnidae
 Lucinida - Lucinidae
Myrtea ezoensis Nagao 1957 clam
 Nuculida - Nuculidae
Acila (Truncacila) hokkaidoensis Nagao 1932 divaricate nutclam
 Protobranchia - Nuculanidae
Jupiteria (Ezonuculana) mactraeformis Nagao 1932 pointed nut clam