Where: Fukui, Japan (35.5° N, 135.3° E: paleocoordinates 44.0° N, 119.7° E)

• coordinate estimated from map

• local area-level geographic resolution

When: N4 Formation (Nabae Group), Carnian (237.0 - 228.0 Ma)

• Carnian (or Norian)

• formation-level stratigraphic resolution

Environment/lithology: marine; fine-grained, medium sandstone and mudstone

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 40127: authorized by Martin Aberhan, entered by Sabine Nürnberg on 18.06.2004

Creative Commons license: CC BY (attribution)