Where: Guizhou, China (26.3° N, 105.9° E: paleocoordinates 5.6° N, 95.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

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

Size classes: macrofossils, microfossils

Preservation: mold/impression

Collection methods: All specimens are kept in the Nanjing Institute of Geology and Paleontology, Academia Sinica.

Primary reference: Z. Q. Yao, J. T. Xu, Z. G. Zheng, X. H. Zhao, and Z. G. Mou. 1980. Late Permian Stratigraphy and Fossils in Western Guizhou and Eastern Yunnan 1-277 [M. Clapham/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 111990: authorized by Matthew Clapham, entered by Matthew Clapham on 02.07.2011

Creative Commons license: CC BY (attribution)