Xiuzigou, bed 4 (Cambrian of China)

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

• Paleocoordinates: 12.5° S, 82.5° E (Wright 2013)

• coordinate estimated from map

• small collection-level geographic resolution

When: Mufushania-Holocephalina trilobite zone, Fengjia'ao Formation, Taijangian (509.0 - 504.5 Ma)

• 32.8 m thick, "Mufushania"-Holocephalina zone of Yang 1993, probably equivalent to Ptachagnostus gibbus zone, Cambrian stage 5

• bed-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified limestone

• outer shelf
• grey thin- to medium-bedded limestone

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 127072: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.04.2012

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Peronopsidae
Peronopsis fallax, Peronopsis xichuanensis n. sp.
Peronopsis fallax Linnarsson 1869
and subsp. ferox
Peronopsis xichuanensis n. sp. Yang et al. 1993
Trilobita
 Corynexochida - Dorypygidae
Kootenia sp.
Kootenia sp. Walcott 1899 trilobite
 Corynexochida - Corynexochidae
Corynexochus eosimplex n. sp., Corynexochus elongatus n. sp.
Corynexochus eosimplex n. sp. Yang et al. 1993 trilobite
Corynexochus elongatus n. sp. Yang et al. 1993 trilobite
 Corynexochida - Dinesidae
Dinesus granulosa
  - Wuaniidae
Wuania trigona n. sp.
Wuania trigona n. sp. Yang et al. 1993 trilobite
  - Holocephalinidae
Holocephalina chinensis n. sp., Holocephalina trapezia n. sp.
Holocephalina chinensis n. sp. Yang et al. 1993 trilobite
Holocephalina trapezia n. sp. Yang et al. 1993 trilobite
  - Antagmidae
Crassifimbra columnaris n. sp.
Crassifimbra columnaris n. sp. Yang et al. 1993 trilobite
 Ptychopariida - Ptychopariidae
Paramecephalus elongatus n. sp., "Trigonaspis hujiaensis n. gen. n. sp." = Trigonyangaspis hujiaensis, Xingrenaspis curvus, Mufushania transversa n. sp.
Paramecephalus elongatus n. sp. Yang et al. 1993 trilobite
"Trigonaspis hujiaensis n. gen. n. sp." = Trigonyangaspis hujiaensis Yang et al. 1993 trilobite
Xingrenaspis curvus Zhou 1974 trilobite
Mufushania transversa n. sp. Yang et al. 1993 trilobite
 Ptychopariida - Solenopleuridae
Solenoparia conica n. sp.
Solenoparia conica n. sp. Yang et al. 1993 trilobite