Where: Guizhou, China (29.0° N, 109.0° E: paleocoordinates 19.4° N, 143.2° E)

• local area-level geographic resolution

When: Nanjinguan Formation, Tremadoc (486.5 - 477.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified shale

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

PaleoDB collection 4773: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 19.08.1999

Creative Commons license: CC BY (attribution)