Emei area, Wutingaspis-Chaoaspis zone (Cambrian of China)

Where: Sichuan, China (29.5° N, 103.4° E: paleocoordinates 30.5° N, 162.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Jiulaodong Formation, Nangaoian (521.0 - 514.0 Ma)

• upper Jiulaodong (=Chiulaotung) Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone and lithified siltstone

• silty mudstone and siltstone, intercalated with glauconite-bearing quartzose siltstone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: S. J. Li. 1980. Trilobites from the Chiulaotung Formation (Lower Cambrian) in Emei area, western Sichuan. Acta Palaeontologica Sinica 19(1):42-50 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 128409: authorized by Wolfgang Kiessling, entered by Uta Merkel on 07.06.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Redlichiida - Redlichiidae
Wutingaspis sp., Wutingaspis sichuanensis, Eoredlichia sp., Eoredlichia emeiensis, Pachyredlichia sp., Chaoaspis sdzuyi n. sp., Chaoaspis ovatus, Chaoaspis semicircularis n. sp., Chaoaspis palmeri n. sp., Chaoaspis similis n. sp.
Wutingaspis sp. Kobayashi 1944 trilobite
Wutingaspis sichuanensis Lee 1978 trilobite
Eoredlichia sp. Chang 1950 trilobite
Eoredlichia emeiensis Lee 1978 trilobite
Pachyredlichia sp. Chang 1966 trilobite
Chaoaspis sdzuyi n. sp. Li 1980 trilobite
Chaoaspis ovatus Chang 1966 trilobite
Chaoaspis semicircularis n. sp. Li 1980 trilobite
Chaoaspis palmeri n. sp. Li 1980 trilobite
Chaoaspis similis n. sp. Li 1980 trilobite
 Redlichiida - Estaingiidae
Eomalungia emeiensis, Eomalungia zhangshanensis n. sp., Eomalungia intermedia n. sp., ? Eomalungia conica n. sp.
Eomalungia emeiensis Lee 1978 trilobite
Eomalungia zhangshanensis n. sp. Li 1980 trilobite
Eomalungia intermedia n. sp. Li 1980 trilobite
? Eomalungia conica n. sp. Li 1980 trilobite
 Redlichiida -
Fandianaspis sp., Fandianaspis elegans n. sp., Fandianaspis emeiensis n. sp.
Fandianaspis sp. Lee 1978 trilobite
Fandianaspis elegans n. sp. Li 1980 trilobite
Fandianaspis emeiensis n. sp. Li 1980 trilobite