Where: Hunan, China (27.3° N, 111.8° E: paleocoordinates 9.7° N, 99.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dalong Formation, Changhsingian (254.2 - 252.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: deep-water; lithified mudstone

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 105947: authorized by Matthew Clapham, entered by Matthew Clapham on 27.02.2011

Creative Commons license: CC BY (attribution)