Wa'ergang, unit 21, NWF21 (Cambrian of China)

Where: Hunan, China (29.1° N, 110.9° E: paleocoordinates 22.6° N, 150.6° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Huaqiao Formation, Guzhangian (500.5 - 497.0 Ma)

• Sample NWF21a-b of unit 21. Probably equivalent to sample WT5 of beds 2-3 of Peng 1987. Fengmuping Formation after Lin 1991, lower Huaqiao Formation after revision of stratigraphic nomenclature of Peng and Babcock 2001. Lejopyge armata assemblage zone, probably equivalent to Lejopyge laevigata-Proagnostus bulbus zones

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

• Jiangnan Slope Belt
• argillaceous limestone with limestone lenses

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: T. R. Lin. 1991. Middle Cambrian stratigraphy and trilobite fauna of Taoyuan, NW Hunan. Acta Palaeontologica Sinica 30(3):360-376 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 128930: authorized by Wolfgang Kiessling, entered by Uta Merkel on 18.06.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida -
Phoidagnostus sp.
Phoidagnostus sp. Whitehouse 1936
 Agnostida - Agnostidae
"Formosagnostus latus" = Hadragnostus modestus, Formosagnostus formosus, "Kormagnostus taoyuanensis" = Kormagnostus minutus
"Formosagnostus latus" = Hadragnostus modestus Lochman 1944
Formosagnostus formosus Ergaliev 1980
"Kormagnostus taoyuanensis" = Kormagnostus minutus Schrank 1975
 Agnostida - Clavagnostidae
Clavagnostus burnsi
Clavagnostus burnsi Jago and Daily 1974
 Agnostida - Ptychagnostidae
Lejopyge armata, Goniagnostus venustus
Lejopyge armata Linnarsson 1869
Goniagnostus venustus Zhou and Yang 1977
 Agnostida - Diplagnostidae
"Oidalagnostus tienshanicus" = Oidalagnostus trispinifer
"Oidalagnostus tienshanicus" = Oidalagnostus trispinifer Westergard 1946
Trilobita
 Corynexochida - Leiostegiidae
Wanshania constricta
  - Monkaspididae
Monkaspis hunanensis
 Trinucleida - Alsataspididae
"Xiangia taoyuanensis" = Torifera taoyuanensis
"Xiangia taoyuanensis" = Torifera taoyuanensis Peng 1987 trilobite
 Asaphida - Anomocarellidae
Neoanomocarella intermedia
 Asaphida - Ceratopygidae
Proceratopyge fuyangensis
Proceratopyge fuyangensis Lu and Lin 1987 trilobite
 Asaphida - Rhyssometopidae
Rhyssometopus sinensis
 Ptychopariida - Lisaniidae
Eoshengia latilimbata, Eoshengia curvata
 Ptychopariida - Diceratocephalidae
Fenghuangella laochatianensis
Fenghuangella laochatianensis Yang 1977 trilobite
 Ptychopariida - Catillicephalidae
Buttsia (Waergangia) spectabilis n. sp., Distazeris dongtingensis, Distazeris hubeiensis, Distazeris hunanensis
Distazeris hubeiensis Zhang et al. 1980 trilobite
Distazeris hunanensis Peng 1987 trilobite
 Lichida - Damesellidae
Paradamesella subquadrata, Paradamesella trapezoidalis, Protaitzehoia intermedia, Protaitzehoia granifera, Protaitzehoia subquadrata, "Paradamesops karatauensis" = Parablackwelderia, "Bergeronites (Palaeadotes) wulingensis" = Palaeadotes, "Bergeronites (Palaeadotes) sp." = Palaeadotes, "Bergeronites (Palaeadotes) hunanensis" = Palaeadotes hunanensis
Protaitzehoia granifera Yang 1978 trilobite
Protaitzehoia subquadrata Peng 1987 trilobite
"Paradamesops karatauensis" = Parablackwelderia trilobite
"Bergeronites (Palaeadotes) wulingensis" = Palaeadotes trilobite
"Bergeronites (Palaeadotes) sp." = Palaeadotes Öpik 1967 trilobite
"Bergeronites (Palaeadotes) hunanensis" = Palaeadotes hunanensis Yang 1977 trilobite