Where: Guangxi, China (23.7° N, 108.6° E: paleocoordinates 1.3° N, 100.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Heshan Formation, Wuchiapingian (259.9 - 254.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: R. J. Zhang. 1977. Bivalvia. Palaeontological Atlas of South-Central China 2:471-533 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 123636: authorized by Matthew Clapham, entered by Matthew Clapham on 26.01.2012

Creative Commons license: CC BY (attribution)