Nariwa Area, Kyowa Formation, Honshu (Triassic of Japan)

Where: Okayama, Japan (34.8° N, 133.7° E: paleocoordinates 43.4° N, 117.7° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Kyowa Formation, Carnian (237.0 - 228.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; mudstone and coal

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 40247: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 20.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Oxytomidae
Oxytoma (Oxytoma) mojsisovicsi Teller 1886 scallop
 Ostreida - Bakevelliidae
 Unionida - Actinodontophoridae
 Trigoniida - Trigoniidae