Where: Hunan, China (29.6° N, 110.1° E: paleocoordinates 0.9° N, 96.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Maokou Formation, Roadian to Roadian (272.3 - 259.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

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 123627: authorized by Matthew Clapham, entered by Matthew Clapham on 26.01.2012

Creative Commons license: CC BY (attribution)