Unnamed Lower Series, Shuiqingliangzi Area, Mojiang County, W Yunnan Province (Silurian of China)

Where: Yunnan, China (23.4° N, 101.7° E: paleocoordinates 23.4° N, 101.7° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Llandovery (443.4 - 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 second area is also of Llandovery age."

• group-level stratigraphic resolution

Environment/lithology: marine; gray shale and gray siltstone

• Correlation chart shows graptolite-based ba3.
• "The unit in the Mojiang area consists of dark-gray shale and siltstone, with some fine-grained, quartzitic sandstone. But more gray-green or grayish-yellow, fine-grained, quartzitic sandstone and siltstone with a few purplish, fine-grained quartzitic sandstones occur in the base of the unit."

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 27860: authorized by Michael Foote, entered by Michael Foote on 15.01.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Monograptidae
Monoclimacis cf. vomerinus, Pristiograptus hisingeri, Pristiograptus concinnus, Pristiograptus regularis, Monograptus cf. sedgwickii, Monograptus priodon
Monograptus priodon Bronn 1835 graptolite
 Graptoloidea - Retiolitidae
Glyptograptus sp.
Ostracoda
 Palaeocopida - Beyrichiidae
Beyrichia sp.
Beyrichia sp. M'Coy 1846 ostracod