Paibi section, bed 22 (Cambrian of China)

Where: Hunan, China (28.4° N, 109.5° E: paleocoordinates 24.0° N, 150.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Lejopyge laevigata trilobite zone, Huaqiao Formation, Guzhangian (500.5 - 497.0 Ma)

• bed 22: 199-218 m, Pianaspis sinensis polymerid trilobite zone

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified packstone and lithified, dolomitic limestone

• Jiangnan Slope Belt, lower slope environments with sediment-gravity flows
• dark-gray, thin-bedded packstone, intercalated with dark-gray, thin-bedded, dolomitic limestone and several layers of light-gray, medium-bedded grainstone, with two layers of medium-bedded limestone breccia occurring in the lower and the middle part respectively

Size class: macrofossils

Primary reference: S. Peng and R. A. Robison. 2000. Agnostid biostratigraphy across the Middle-Upper Cambrian boundary in Hunan, China. Journal of Paleontology Memoir 53 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49172: authorized by Austin Hendy, entered by Austin Hendy on 10.04.2005, edited by Uta Merkel

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Ptychopariida - Lisaniidae
"Baojingia paralala" = Eoshengia, "Baojingia tungrenensis" = Eoshengia, "Baojingia latilimbata" = Eoshengia
"Baojingia paralala" = Eoshengia trilobite
"Baojingia tungrenensis" = Eoshengia trilobite
"Baojingia latilimbata" = Eoshengia trilobite
 Asaphida - Anomocarellidae
Huayuania subcalva, Paranomocarella fortis
Huayuania subcalva Peng et al. 1995 trilobite
Paranomocarella fortis Peng et al. 1995 trilobite
 Asaphida - Rhyssometopidae
Qiandongaspis sinensis
 Lichida - Damesellidae
Palaeadotes hunanensis, Paradamesella peculiaris, Parablackwelderia jimaensis, Parablackwelderia laterilobata
Palaeadotes hunanensis Yang 1977 trilobite
Paradamesella peculiaris Zhou 1977 trilobite
Parablackwelderia jimaensis Yang 1974 trilobite
Parablackwelderia laterilobata Yang 1977 trilobite
 Corynexochida - Dolichometopidae
Fuchouia oratolimba, Fuchouia ? chiai
Fuchouia oratolimba Yang 1977 trilobite
Fuchouia ? chiai Lu 1957 trilobite
 Olenida - Olenidae
Lisania paratungjenensis
Lisania paratungjenensis Yang 1978 trilobite
  -
Prodamesella cf. biserrata
Artiopoda
 Agnostida -
? Phalagnostus sp.
? Phalagnostus sp. Howell 1955
 Agnostida - Diplagnostidae
Diplagnostus sp.
Diplagnostus sp. Jaeckel 1909
 Agnostida - Spinagnostidae
Hypagnostus brevifrons
 Agnostida - Ammagnostidae
Ammagnostus laiwuensis
 Agnostida - Ptychagnostidae
"Lejopyge laevigata" = Lejopyge laevigatus, "Ptychagnostus aculeatus" = Acidusus aculeatus
"Lejopyge laevigata" = Lejopyge laevigatus Dalman 1828
"Ptychagnostus aculeatus" = Acidusus aculeatus Angelin 1851
 Agnostida - Clavagnostidae
Clavagnostus repandus, Clavagnostus trispinus
Clavagnostus repandus Westergard 1930
Clavagnostus trispinus Zhou and Yang 1977