Yangweizhou-Jimachong, Blackwelderia zone (Cambrian of China)

Where: Guizhou, China (27.5° N, 109.2° E: paleocoordinates 24.8° N, 150.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Formosagnostus formosus-Blackwelderia trilobite zone, Chefu Formation, Guzhangian (500.5 - 497.0 Ma)

• beds 14-20, lower Chefu Formation, Youshuian = Guzhangian

• group of beds-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

• grey to dark grey, thin-bedded argillaceous limestone, laminated limestone intercalated with grey to pale-grey, thick-bedded rudaceous limestone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: J. L. Yuan and G. Z. Yin. 1998. New polymerid trilobites from the Chefu Formation in early Late Cambrian of eastern Guizhou. Acta Palaeontologica Sinica 37(2):137-172 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 125072: authorized by Wolfgang Kiessling, entered by Uta Merkel on 02.03.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
  - Mapaniidae
Pseudomapania truncata n. sp.
Pseudomapania truncata n. sp. Yuan and Yin 1998 trilobite
 Ptychopariida - Tricrepicephalidae
Tricrepicephalus asiaticus n. sp.
Tricrepicephalus asiaticus n. sp. Yuan and Yin 1998 trilobite
 Ptychopariida - Lonchocephalidae
Neoglaphyraspis nitida n. gen. n. sp.
Neoglaphyraspis nitida n. gen. n. sp. Yuan and Yin 1998 trilobite
 Ptychopariida - Plethopeltidae
Poriplethopeltis sinensis
Poriplethopeltis sinensis Yuan and Yin 1998 trilobite
 Ptychopariida - Ptychopariidae
Cathayanella granulosa n. gen. n. sp., Townleyella rara n. sp., Townleyella similis n. sp.
Cathayanella granulosa n. gen. n. sp. Yuan and Yin 1998 trilobite
Townleyella rara n. sp. Yuan and Yin 1998 trilobite
Townleyella similis n. sp. Yuan and Yin 1998 trilobite
 Asaphida - Anomocaridae
Afghanocare guizhouensis n. sp.
Afghanocare guizhouensis n. sp. Yuan and Yin 1998 trilobite
 Asaphida - Rhyssometopidae
Qiandongaspis qiandongensis n. gen. n. sp.
Qiandongaspis qiandongensis n. gen. n. sp. Yuan and Yin 1998 trilobite
 Trinucleida - Alsataspididae
Gaoloupingia gaoloupingensis n. gen. n. sp., Gaoloupingia triangularis n. sp.
Gaoloupingia gaoloupingensis n. gen. n. sp. Yuan and Yin 1998 trilobite
Gaoloupingia triangularis n. sp. Yuan and Yin 1998 trilobite
 Lichida - Damesellidae
Protaitzehoia quadrata, Protaitzehoia granifera, Protaitzehoia nitida n. sp.
Protaitzehoia quadrata Resser and Endo 1937 trilobite
n. subsp. jimachongensis
Protaitzehoia granifera Yang 1978 trilobite
Protaitzehoia nitida n. sp. Yuan and Yin 2001 trilobite
 Corynexochida - Leiostegiidae
Meropalla bella n. sp.
Meropalla bella n. sp. Yuan and Yin 1998 trilobite
 Corynexochida - Kaolishaniidae
Palemansuyia prima n. gen. n. sp.
Palemansuyia prima n. gen. n. sp. Yuan and Yin 1998 trilobite
 Corynexochida - Corynexochidae
"Chatiania (Eochatiania) laevigata n. sp." = Eochatiania laevigata, "Parachatiania expansa n. gen. n. sp." = Chatiania expansa
"Chatiania (Eochatiania) laevigata n. sp." = Eochatiania laevigata Yuan and Yin 1998 trilobite
"Parachatiania expansa n. gen. n. sp." = Chatiania expansa Yuan and Yin 1998 trilobite
 Olenida - Pterocephaliidae
Yangweizhouia carinata n. gen. n. sp.
Yangweizhouia carinata n. gen. n. sp. Yuan and Yin 1998 trilobite