Where: Guizhou, China (26.6° N, 106.8° E: paleocoordinates 13.1° N, 129.0° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Longjing Formation, Late/Upper Ordovician (458.4 - 443.8 Ma)

• Except where otherwise stated, ref. 7624 uses Lower Silurian as equivalent to Llandovery, Middle Silurian as equivalent to Wenlock, and Upper Silurian as equivalent to Ludlow plus Pridoli. "Yang and Wang [1977] consider that the evidence provided by the forms of Plasmoporella and Heliolites indicate a correlation with Late Ordovician European and Asian forms from elsewhere; they correlate the Longjing with the early late Ordovician. Thus there is a disconformity between the Longjing and the overlying Lower Kaochaitien Fm. of Silurian age."

• formation-level stratigraphic resolution

Environment/lithology: marine; gray limestone

Primary reference: E.-z. Mu, A. J. Boucot, X. Chen and J.-y. Rong. 1986. Correlation of the Silurian rocks of China. In A. J. Boucot and W. B. N. Berry (eds.), Geological Society of America Special Paper 202:1-80 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 27781: authorized by Michael Foote, entered by Michael Foote on 09.01.2003

Creative Commons license: CC BY (attribution)