Where: Hubei, China (30.8° N, 111.3° E: paleocoordinates 4.0° N, 126.6° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Monoclimacis arcuata zone, Pengjiayuan Formation, Aeronian (440.8 - 438.5 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 formation formerly regarded as lower part of Lojoping fm. (see PBDB coll. 27779). "The graptolite fauna represents the Monoclimacis arcuata zone, and correlates with the upper part of the Monograptus sedgwickii zone, or with a part of the successive zone...It is adopted as a subzone by Mu and others to represent the upper part of the M. sedgwickii zone, and the P. Fm. may be restricted within this stratigraphic position."

• formation-level stratigraphic resolution

Environment/lithology: marine; shale and marl

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 27813: authorized by Michael Foote, entered by Michael Foote on 13.01.2003

Creative Commons license: CC BY (attribution)