Wa'ergang, unit 24, NWF24 (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 NWF24a of unit 24. Probably equivalent to sample WT10 of bed 5 of Peng 1987. Laochatian Formation after Lin 1991, Huaqiao Formation after revision of stratigraphic nomenclature of Peng and Babcock 2001. Agnostascus (Paragnostascus) sinensis assemblage zone, probably equivalent to Linguagnostus reconditus zone

• 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 128933: authorized by Wolfgang Kiessling, entered by Uta Merkel on 18.06.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Asaphida - Ceratopygidae
Proceratopyge fuyangensis Lu and Lin 1987 trilobite
 Asaphida - Anomocarellidae
Neoanomocarella asiatica Hsiang 1963 trilobite
 Asaphida - Anomocaridae
"Hunanaspis truncatus" = Afghanocare truncatum
"Hunanaspis truncatus" = Afghanocare truncatum Peng 1987 trilobite
 Trinucleida - Liostracinidae
Liostracina bella Lin et al. 1983 trilobite
 Ptychopariida - Diceratocephalidae
Fenghuangella laochatianensis Yang 1977 trilobite
Fenghuangella magnispina Lin et al. 1983 trilobite
 Lichida - Damesellidae
"Bergeronites (Palaeadotes) changdeensis" = Palaeadotes trilobite
 Harpetida - Entomaspididae
Baikadamaspis sp. Ergaliev 1980 trilobite
 Agnostida - Ammagnostidae
"Agnostascus (Paragnostascus) sinensis" = Proagnostus, Ammagnostus sinensis
"Agnostascus (Paragnostascus) sinensis" = Proagnostus
 Agnostida - Spinagnostidae
"Phalacroma sinicum" = Peratagnostus obsoletus, Tomagnostella rara, "Hypagnostus (Metahypagnostus) brachydolonus" = Hypagnostus brevifrons
"Phalacroma sinicum" = Peratagnostus obsoletus Kobayashi 1935
"Hypagnostus (Metahypagnostus) brachydolonus" = Hypagnostus brevifrons Angelin 1851
 Agnostida - Agnostidae
"Cyclagnostus yaogongbuensis" = Acmarhachis typicalis, "Kormagnostus taoyuanensis" = Kormagnostus minutus, Homagnostus cf. comptus
"Cyclagnostus yaogongbuensis" = Acmarhachis typicalis Resser 1938
"Kormagnostus taoyuanensis" = Kormagnostus minutus Schrank 1975
 Agnostida - Diplagnostidae
"Pseudagnostus (Pseudagnostina) vicaria" = Pseudagnostus prolongus
"Pseudagnostus (Pseudagnostina) vicaria" = Pseudagnostus prolongus Hall and Whitfield 1877
 Agnostida - Clavagnostidae
"Aspidagnostus taoyuanensis" = Aspidagnostus laevis
"Aspidagnostus taoyuanensis" = Aspidagnostus laevis Palmer 1962