Gaoqiaogou, bed 56d (Cambrian of China)

Where: Sichuan, China (32.2° N, 108.4° E: paleocoordinates 22.2° N, 154.7° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Lejopyge laevigata-Clavagnostus (Parclavagnostus) variatus trilobite zone, Baguamiao Formation, Guzhangian (500.5 - 497.0 Ma)

• Lejopyge laevigata-Clavagnostus (Parclavagnostus) variatus zone of Yang 1993, probably equivalent to Lejopyge laevigata zone

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified lime mudstone and lithified, argillaceous limestone

• platform margin slope
• dark-grey and grey thin-bedded micrite intercalated with argillaceous banded 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 127068: 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
Artiopoda
 Agnostida - Peronopsidae
Peronopsis (Armagnostus) sinensis n. sp.
Peronopsis (Armagnostus) sinensis n. sp. Yang et al. 1993
 Agnostida - Ptychagnostidae
"Lejopyge laevigata" = Lejopyge laevigatus
"Lejopyge laevigata" = Lejopyge laevigatus Dalman 1828
 Agnostida - Agnostidae
"Innitagnostus neglectus" = Agnostus neglectus
"Innitagnostus neglectus" = Agnostus neglectus Westergard 1946
 Agnostida - Clavagnostidae
Clavagnostus cf. repandus, Clavagnostus (Paraclavagnostus) variatus
Clavagnostus cf. repandus Westergard 1930
 Agnostida - Spinagnostidae
"Hypagnostus correctus" = Hypagnostus parvifrons
"Hypagnostus correctus" = Hypagnostus parvifrons Linnarsson 1869
 Agnostida - Diplagnostidae
Diplagnostus planicauda
Trilobita
 Ptychopariida - Lisaniidae
Dazhuia dazhuensis n. gen. n. sp., Metalisania subquadrata, Eoshengia tenuis, Eoshengia gaoqiaogouensis n. sp., Eoshengia shorteglabella n. sp.
Dazhuia dazhuensis n. gen. n. sp. Yang et al. 1993 trilobite
Metalisania subquadrata Ju 1983 trilobite
Eoshengia tenuis Zhang 1981 trilobite
Eoshengia gaoqiaogouensis n. sp. Yang et al. 1993 trilobite
Eoshengia shorteglabella n. sp. Yang et al. 1993 trilobite
 Ptychopariida - Papyriaspididae
Pianaspis dictyodroma
Pianaspis dictyodroma Yang et al. 1993 trilobite