Where: Hunan, China (29.5° N, 100.4° E: paleocoordinates 27.1° S, 85.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dangchong Formation, Roadian (272.5 - 268.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

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 123633: authorized by Matthew Clapham, entered by Matthew Clapham on 26.01.2012

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)