Unit 7, SanQiaoJia Fm., Xindian, Qiaojia Co., Yunnan Prov., China (Ordovician of China)

Where: Yunnan, China (27.0° N, 103.0° E: paleocoordinates 22.0° N, 140.0° E)

• local area-level geographic resolution

When: Sanqiaojia Formation, Arenig (478.6 - 466.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified mudstone and siltstone

• mudstone and siltstone

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

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 7291: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 22.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Lingulata
 Lingulida - Lingulidae
Lingula sp. BruguiƩre 1797
 Lingulida - Discinidae
Orbiculoidea sp. d'Orbigny 1847