Upper section, ZhongBao Grp., SiHuiGou and YongDeng Counties, GanSu Prov., China (Ordovician to of China)

Where: GanSu, China (37.0° N, 103.0° E: paleocoordinates 26.7° S, 119.2° E)

• local area-level geographic resolution

When: Soudleyan to Soudleyan (458.4 - 449.5 Ma)

• ZhongBao Group

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, green, cherty/siliceous sandstone and shale

• light gray to grayish green silicates, sandstone, and phyllite with purplish red andesitic tuff in middle and black slate at bottom

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 8571: 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 - Diplograptidae
Diplograptus sp., Amplexograptus sp., Orthograptus sp.
Diplograptus sp. graptolite
Amplexograptus sp. graptolite
Orthograptus sp. Lapworth 1873 graptolite
 Graptoloidea - Lasiograptidae
"Prolasiograptus sp." = Lasiograptus
"Prolasiograptus sp." = Lasiograptus Lapworth 1873 lasiograptid
 Graptoloidea - Climacograptidae
Climacograptus sp., Pseudoclimacograptus sp.
Climacograptus sp. Hall 1865 climacograptid
Pseudoclimacograptus sp. climacograptid
 Graptoloidea - Retiolitidae
Glyptograptus sp.
Glyptograptus sp. Lapworth 1873 graptolite
 Graptoloidea - Glossograptidae
Cryptograptus sp.