Where: Hunan, China (27.9° N, 112.6° E: paleocoordinates 6.8° N, 100.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Upper Member (Douling Formation), Wuchiapingian (259.9 - 254.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: Z.J. Fang. 1987. Bivalves from the upper part of the Permian in southern Hunan, China. Collection of Postgraduate Theses of the Nanjing Institute of Geology and Palaeontology, Academia Sinica 1987(1):349-411 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 107824: authorized by Matthew Clapham, entered by Matthew Clapham on 16.04.2011

Creative Commons license: CC BY (attribution)