Chuxian-Quanjiao, middle Langyashan Formation (Cambrian of China)

Where: Anhui, China (32.3° N, 118.3° E: paleocoordinates 15.9° N, 149.7° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Langyashan Formation, Paibian (497.0 - 494.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, argillaceous limestone

• grey to blackish grey, medium to massive, argillaceous laminated limestones, interbedded with dolomitic and arenaceous crystalline limestones

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: Y. Lu and Z. Zhu. 1980. Cambrian trilobites from Chuxian-Quanjiao region, Anhui. Memoirs of Nanjing Institute of Geology and Palaeontology 16:1-38 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127477: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.05.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Agnostidae
Homagnostus sp.
Homagnostus sp. Howell 1935
 Agnostida - Diplagnostidae
Pseudagnostus subquadratus n. sp., Rhaptagnostus langyashanensis n. sp.
Pseudagnostus subquadratus n. sp. Lu and Zhu 1980
Rhaptagnostus langyashanensis n. sp. Lu and Zhu 1980
Trilobita
 Corynexochida - Kaolishaniidae
Pagodia sp.
Pagodia sp. Walcott 1905 trilobite
 Corynexochida - Leiostegiidae
Prochuangia longispina n. sp.
Prochuangia longispina n. sp. Lu and Zhu 1980 trilobite
 Olenida - Pterocephaliidae
Pseudaphelaspis transversus n. sp., Pseudaphelaspis langyashanensis n. gen. n. sp., Pseudaphelaspis obscurus n. sp., Pseudaphelaspis latus n. sp., ? Paramaladioidella sp., Paramaladioidella subconica n. gen. n. sp.
Pseudaphelaspis transversus n. sp. Lu and Zhu 1980 trilobite
Pseudaphelaspis langyashanensis n. gen. n. sp. Lu and Zhu 1980 trilobite
Pseudaphelaspis obscurus n. sp. Lu and Zhu 1980 trilobite
Pseudaphelaspis latus n. sp. Lu and Zhu 1980 trilobite
? Paramaladioidella sp. Lu and Zhu 1980 trilobite
Paramaladioidella subconica n. gen. n. sp. Lu and Zhu 1980 trilobite
 Olenida - Idahoiidae
Langyashania transversa n. sp., Langyashania distincta n. gen. n. sp.
Langyashania transversa n. sp. Lu and Zhu 1980 trilobite
Langyashania distincta n. gen. n. sp. Lu and Zhu 1980 trilobite
 Harpetida - Harpetidae
Palaeoharpes sp.
Palaeoharpes sp. Lu and Qian 1977 trilobite
 Asaphida - Ceratopygidae
Yuepingia brevica n. sp.
Yuepingia brevica n. sp. Lu and Zhu 1980 trilobite
 Ptychopariida - Crepicephalidae
Coosinoides anhuiensis n. sp.
Coosinoides anhuiensis n. sp. Lu and Zhu 1980 trilobite