Maizuru Zone, Oro Formation, Honshu (Triassic to of Japan)

Where: Fukui, Japan (35.5° N, 135.3° E: paleocoordinates 35.0° N, 111.8° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Oro Formation (Yakuno Group), Induan to Induan (252.2 - 247.2 Ma)

• Skytian

• formation-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments

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 39972: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 13.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Entoliidae
Entolium cf. discites Schlotheim 1820 scallop
Entolium cf. microtis Bittner 1899 scallop
 Pectinida - Limidae
 Pectinida - Hunanopectinidae
? Leptochondria aff. virgalensis Wittenburg 1908 scallop
 Ostreida - Pteriidae
""Pecten" aff. sojalis" = Confusionella loczyi
""Pecten" aff. sojalis" = Confusionella loczyi Bittner 1901 pearl oyster
 Ostreida - Pinnidae
 Protobranchia - Malletiidae
Palaeoneilo cf. elliptica Goldfuss 1837 clam
incl. subsp. praecursor
 Protobranchia - Nuculanidae
Nuculana (Dacryomya) nogamii pointed nut clam
subsp. yakunoensis and subsp. nogamii