Xiuzigou, bed 10b (Cambrian to of China)

Where: Henan, China (32.8° N, 111.5° E: paleocoordinates 20.4° N, 154.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Linguagnostus kjerulfi-Diplagnostus qinlingensis trilobite zone, Xijiadian Formation, Wangcunian to Wangcunian (504.5 - 497.0 Ma)

• Linguagnostus kjerulfi-Diplagnostus qinlingensis zone of Yang 1993, probably equivalent to Lejopyge armata-Lejopyge laevigata zones, Drumian-Guzhangian

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified, dolomitic limestone and lithified, calcareous shale

• platform margin slope
• grey thin- to medium-bedded limy dolomite in the upper part, bluish-grey thin-bedded dolomitic limestone with purplish-red calcareous shale in the middle part, leopard limestone in the lower part

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: J. Yang, S. Yu, G. Liu, N. Su, M. He, J. Shang, H. Zhang, H. Zhu, Y. Li and G. Yan. 1993. Cambrian stratigraphy, lithofacies, paleogeography and trilobite faunas of East Qinling-Dabashan Mountains, China 1-246 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127076: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.04.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Ptychopariida - Papyriaspididae
Pianaspis "sp. 3", Pianaspis attenuata, Pianaspis sinensis
Pianaspis "sp. 3" Saito and Sakakura 1936 trilobite
Pianaspis attenuata Lermontova and Chernysheva 1950 trilobite
Pianaspis sinensis Yang 1978 trilobite
 Ptychopariida - Lisaniidae
Extrania trigona n. sp., Quandraspis shengwanensis n. gen. n. sp., Eoshengia rigida n. sp., Eoshengia paratenuis n. sp.
Extrania trigona n. sp. Yang et al. 1993 trilobite
Quandraspis shengwanensis n. gen. n. sp. Yang et al. 1993 trilobite
Eoshengia rigida n. sp. Yang et al. 1993 trilobite
Eoshengia paratenuis n. sp. Yang et al. 1993 trilobite
 Ptychopariida - Solenopleuridae
Huzhuia paratypica
Huzhuia paratypica Yang 1978 trilobite
 Corynexochida - Dolichometopidae
Fuchouia cf. oratolimba
Fuchouia cf. oratolimba Yang 1977 trilobite
Artiopoda
 Agnostida - Diplagnostidae
Linguagnostus kjerulfi, "Peronopsis rakuroensis" = Baltagnostus rakuroensis, "Diplagnostus qinlingensis n. sp." = Diplagnostus planicauda
"Peronopsis rakuroensis" = Baltagnostus rakuroensis Kobayashi 1935
"Diplagnostus qinlingensis n. sp." = Diplagnostus planicauda Angelin 1851
 Agnostida - Spinagnostidae
Hypagnostus transversus, Hypagnostus vulgarus
Hypagnostus transversus Yang et al. 1993
Hypagnostus vulgarus Qian and Qiu 1983
 Agnostida - Ammagnostidae
"Peronopsis laiwuensis" = Ammagnostus laiwuensis
"Peronopsis laiwuensis" = Ammagnostus laiwuensis Lorenz 1906
 Agnostida - Ptychagnostidae
"Ptychagnostus aculeatus" = Acidusus aculeatus
"Ptychagnostus aculeatus" = Acidusus aculeatus Angelin 1851
 Agnostida - Peronopsidae
Peronopsis fallax, ? Peronopsis bilobus n. sp.
Peronopsis fallax Linnarsson 1869
subsp. ferox
? Peronopsis bilobus n. sp. Yang et al. 1993