Yingan (Lower member of Saergan) (Ordovician of China)

Also known as Lower Mbr., SaErGan Fm., YinGan, KePin Co., XinJiang Prov., China

Where: XinJiang, China (40.1° N, 80.3° E: paleocoordinates 30.8° S, 119.0° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Lower Member (SaErGan Formation), Early/Lower Llandeilo (466.0 - 460.9 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; concretionary, black, gray, argillaceous limestone

• Black to grayish-black muddy limestone with limestone nodules

Size classes: macrofossils, mesofossils

Primary reference: Y. S. Zhang. 1981. Stratigraphic table of northwestern region of China: XinJiang Province part. Geological Publishing House, Beijing, China (Original source resides with A. Miller) [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 20804: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 07.06.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

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Pterobranchia
 Graptoloidea - Dichograptidae
Didymograptus sp.
Didymograptus sp. McCoy 1851 graptolite
 Graptoloidea - Glossograptidae
Glossograptus sp.
 Graptoloidea - Diplograptidae
Amplexograptus sp.
 Graptoloidea - Climacograptidae
Pseudoclimacograptus sp.
 Graptoloidea - Retiolitidae
Glyptograptus sp.
Glyptograptus sp. Lapworth 1873 graptolite
Trilobita
 Trinucleida - Raphiophoridae
Endymionia sp.
Endymionia sp. Billings 1865 trilobite