Where: Chongqing, China (30.3° N, 106.9° E: paleocoordinates 9.2° N, 93.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• 7.09 m thick

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, gray, cherty/siliceous limestone

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: J. Z. Yang and L. H. Lu. 1980. Upper Permian bryozoans from eastern Sichuan and western Guizhou. Acta Palaeontologica Sinica 19:461-474 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 121016: authorized by Matthew Clapham, entered by Matthew Clapham on 25.11.2011

Creative Commons license: CC BY (attribution)