Yaxi, bed 14 (Cambrian of China)

Where: Guizhou, China (27.6° N, 109.2° E)

• Paleocoordinates: 4.5° S, 75.0° E (Wright 2013)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: I Member (Aoxi Formation), Duyunian (514.0 - 509.0 Ma)

• bed 14: 29.69 m thick

• bed-level stratigraphic resolution

Environment/lithology: lithified dolomite

• muddy dolomite and fine dolostone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: H. Yang, X. P. Fu, Y. L. Zhao, J. Peng, X. L. Yang and B. X. Li. 2009. Trilobite assemblage of the upper part of the Member 1 from the Aoxi Formation at Shizhu-Yaxi village, Tongren area, Guizhou Province, China and its significance. Geological Bulletin of China 28(5):637-644 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127438: authorized by Wolfgang Kiessling, entered by Uta Merkel on 14.05.2012

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Ptychopariida - Ptychopariidae
Kunmingaspis sp.
Kunmingaspis sp. Lu and Chang 1974 trilobite
  - Antagmidae
Xiangqianaspis sp.
Xiangqianaspis sp. Zhang et al. 1980 trilobite
 Corynexochida - Dorypygidae
Kootenia sp.
Kootenia sp. Walcott 1899 trilobite
 Corynexochida - Oryctocephalidae
Changaspis cf. placenta, Ovatoryctocara granulata
Changaspis cf. placenta Zhang et al. 1980 trilobite
Ovatoryctocara granulata Chernysheva 1960 trilobite