Where: Guizhou, China (25.8° N, 107.6° E: paleocoordinates 13.3° N, 96.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Qingyan Formation, Anisian (247.2 - 242.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Primary reference: J. K. Zhao and Y. G. Wang. 1974. Triassic ammonoids. Handbook of the Stratigraphy and Paleontology of Southwest China 344-351 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 99898: authorized by Matthew Clapham, entered by Matthew Clapham on 26.11.2010

Creative Commons license: CC BY (attribution)