Where: Yunnan, China (27.8° N, 105.1° E: paleocoordinates 9.5° N, 127.7° E)

• coordinate based on political unit

• local area-level geographic resolution

When: "Shihniulan" Formation, Aeronian to Aeronian (440.8 - 433.4 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. "This unit was measured by the 103 Oil Exploration Team of Yunnan and Guizhou and the 8th Team of the Geological Bureau of Yunnan...We assign [it] to the "Sh. Fm." The lithology...differs considerably fromt he typical Sh...which lacks sandstone...It is of late Middle to early Late Llandovery age because of its fauna and stratigraphic position above the well-dated Lungmachi Formation."

• formation-level stratigraphic resolution

Environment/lithology: marine; marl and argillaceous 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 27837: authorized by Michael Foote, entered by Michael Foote on 14.01.2003

Creative Commons license: CC BY (attribution)