YinGou Fm., AnMen and YuMen cities, GanSu Prov., China (Ordovician of China)

Where: GanSu, China (40.0° N, 98.0° E: paleocoordinates 25.0° S, 117.2° E)

• local area-level geographic resolution

When: Yingou Formation, Llanvirn (468.0 - 458.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, black, cherty/siliceous shale and limestone

• blackish basalt and silicates and black shale and limestone

Primary reference: Stratigraphic Group of Quing Hai Province. 1980. Regional stratigraphic tables of the north western China region: Volume of NinXia Province. Geological Publishing House, Beijing, China [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 8567: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 02.08.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Isograptidae
Cardiograptus sp., Isograptus sp.
Isograptus sp. Moberg 1892 graptolite
 Graptoloidea - Glossograptidae
Cryptograptus sp., Glossograptus sp., Paraglossograptus sp.
Glossograptus sp. graptolite
 Graptoloidea - Phyllograptidae
Phyllograptus sp.
Phyllograptus sp. Hall 1858 graptolite
 Graptoloidea - Tetragraptidae
Pseudotrigonograptus sp.
 Graptoloidea - Dichograptidae
Didymograptus sp.
Didymograptus sp. McCoy 1851 graptolite
 Graptoloidea - Climacograptidae
Climacograptus sp.
Climacograptus sp. Hall 1865 climacograptid
Trilobita
 Trinucleida - Raphiophoridae
Lonchodomas sp.
Lonchodomas sp. Angelin 1854 trilobite
 Asaphida - Asaphidae
Pseudoasaphus sp., Megistaspis sp.
Pseudoasaphus sp. Schmidt 1901 trilobite
Megistaspis sp. Jaanusson 1956 trilobite