Where: Yunnan, China (25.2° N, 104.5° E: paleocoordinates 4.9° N, 95.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kayitou Formation, Griesbachian (251.9 - 250.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Preservation: mold/impression

Primary reference: F. X. Guo. 1985. Fossil Bivalves of Yunnan 1-319 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 98542: authorized by Matthew Clapham, entered by Matthew Clapham on 08.10.2010

Creative Commons license: CC BY (attribution)