Where: Yunnan, China (32.0° N, 105.0° E: paleocoordinates 12.5° N, 135.8° E)

• local area-level geographic resolution

When: Jianchaogou Formation, Actonian to Actonian (455.8 - 449.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, black, silty shale and limestone

Primary reference: R. Wang. 1981. Stratigraphic Summary of the Southwestern Region of China. Institute of Geology and Mine Deposit at Chengdu, Ministry of Geology (not published, copy of article deposited with A. I. Miller at the University of Cincinnati, received through S. Mao) 14-61 [A. Miller/P. Novack-Gottshall] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 7261: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 21.05.2000