Lower section, Dawan Fm., NingLang, NingLang Co., YunNan Prov., China (Ordovician of China)

Where: YunNan, China (27.0° N, 101.0° E: paleocoordinates 23.6° N, 141.7° E)

• local area-level geographic resolution

When: Dawan Formation, Dawan (478.6 - 468.1 Ma)

Environment/lithology: transition zone or lower shoreface; lithified, gray, green sandstone and shale

• feldspar-rich quartz sandstone and grayish green shale at top; gray to grayish white quartz sandstone and grayish green to purplish red shale

Primary reference: Stratigraphic Group of Yunnan, China. 1978. Regional stratigraphic data of Southwest China, Yunnan Province. Geological Publishing House, Beijing, China [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 7746: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 01.06.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

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Pterobranchia
 Dendroidea - Dendrograptidae
Ptilograptus sp.
Ptilograptus sp. graptolite
 Graptoloidea - Dichograptidae
Didymograptus sp.
Didymograptus sp. McCoy 1851 graptolite
Lingulata
 Lingulida - Obolidae
Lingulepis sp.
Lingulepis sp. Hall 1863
Rhynchonellata
 Orthida - Plaesiomyidae
Metorthis sp.
 Orthida - Orthidae
Orthis sp.
Orthis sp. Dalman 1828