XieHao Fm., QiQiaoGou and WuWei Counties, GanSu Prov., China (Ordovician to of China)

Where: GanSu, China (38.0° N, 103.0° E: paleocoordinates 28.5° S, 115.3° E)

• local area-level geographic resolution

When: Xiehao Formation, Cautleyan to Cautleyan (449.2 - 443.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, pyritic, argillaceous, silty sandstone and shale

• yellowish green to brown sandstone, sandy shale, quartz sandstone, and muddy siltstone at top with black pyritic shale and dark fine-grained sandstone in middle and gray shale and fine-grained sandstone and siltstone with ripples marks and worms traces 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 8557: 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
unclassified
  -
Eurasiaticoceras sp.
Trilobita
 Phacopida - Homalonotidae
"Liangshanaspis sp." = Platycoryphe
"Liangshanaspis sp." = Platycoryphe Foerste 1919 trilobite
 Phacopida - Dalmanitidae
Dalmanitina sp.
Dalmanitina sp. Reed 1905 trilobite
Rhynchonellata
 Orthida - Hesperorthidae
Ptychopleurella sp., Dolerorthis sp.
Ptychopleurella sp. Schuchert and Cooper 1931
Dolerorthis sp. Schuchert and Cooper 1931
Cephalopoda
 Orthocerida - Orthoceratidae
Michelinoceras sp.
Michelinoceras sp. Foerste 1932
 Endocerida - Endoceratidae
Endoceras sp.
Endoceras sp. Hall 1847
Pterobranchia
 Graptoloidea - Abrograptidae
Reteograptus sp.
Reteograptus sp. graptolite
 Graptoloidea - Retiolitidae
Glyptograptus sp.
Glyptograptus sp. Lapworth 1873 graptolite
 Graptoloidea - Climacograptidae
Climacograptus sp.
Climacograptus sp. Hall 1865 climacograptid
 Graptoloidea - Dicranograptidae
Pleurograptus sp., Dicellograptus sp.
Dicellograptus sp. Hopkinson 1871 graptolite
 Graptoloidea - Lasiograptidae
Paraplegmatograptus sp.
Paraplegmatograptus sp. Mu and Lin 1984 lasiograptid
 Graptoloidea - Diplograptidae
Orthograptus sp.
Orthograptus sp. Lapworth 1873 graptolite