Where: SiChuan, China (28.0° N, 102.0° E: paleocoordinates 22.0° N, 141.5° E)

• local area-level geographic resolution

When: Xiaqiaojia Formation, Arenig (478.6 - 466.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, gray, sandy limestone and shale

Primary reference: Academy of Geological Sciences, Jiangsu Bureau of Petroleum Prospecting, Nanjing Institute Geology, Paleontology, and Academia Sinica. 1988. Sinian-Triassic biostratigraphy of the Lower Yangtze peneplatform in Jiangsu Region. Nanjing University Press, Nanjing, China [A. Miller/P. Novack-Gottshall] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 7950: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 09.06.2000