Nukada, Y-25, Shimoyakuno (Triassic of Japan)

Where: Japan (35.3° N, 135.0° E: paleocoordinates 35.8° N, 111.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Honodani Formation (Yakuno Group), Olenekian (251.2 - 247.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: mold/impression

Primary reference: K. Nakazawa. 1959. Permian and Eo-Triassic Bakevellias from the Maizuru Zone, southwest Japan. Memoirs of the College of Science, University of Kyoto, Series B 26:193-213 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 115387: authorized by Matthew Clapham, entered by Matthew Clapham on 01.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Bakevelliidae