Bed Mb08, Meishucun section (Cambrian to of China)

Also known as Bed 8 of Qian & Bengston.

Where: Yunnan, China (24.7° N, 102.6° E: paleocoordinates 37.1° N, 162.8° E)

• coordinate stated in text

• local area-level geographic resolution

When: Siphogonuchites - Paragloborilus small shelly zone, Dahai Member (Zhujiaqing Formation), Meishucunian to Meishucunian (530.7 - 521.0 Ma)

• Watsonella crosbyi

• bed-level stratigraphic resolution

Environment/lithology: lithified, phosphatic, gray, silty, cherty/siliceous siltstone and lithified, black, argillaceous, silty dolomite

• Grey, thick-bedded, phosphatic and silty dolomite intercalated with cherty and glauconitic horizons.

Size classes: mesofossils, microfossils

Preservation: cast

Collection methods: Specimens stored at Nanjing Institue of Geology and Palaeontology, Academia Sinica, Nanjing, China

Primary reference: Y. Qian and S. Bengtson. 1989. Palaeontology and biostratigraphy of the Early Cambrian Meishucunian Stage in Yunnan Province, South China. Fossils and Strata 24:1-156 [P. Wagner/P. Wagner/S. Nurnberg]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 96449: authorized by Pete Wagner, entered by Pete Wagner on 08.06.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

 Hyolithelminthida - Torellellidae
Hyolitha
 Orthothecida - Circothecidae
 Orthothecida -
Maikhanellidae
  - Maikhanellidae
Aegides seperbes Jiang 1980
Helcionelloida
  - Helcionellidae
Obtusoconus honorabilis Qian et al. 1979
Asiapatella sinuata Parkhaev and Demidenko 2010
"Archaeospira cf. ornata" = Oelandiella korobkovi Vostokova 1962
listed as Latouchella korobkovi by Parkhaev 2010
"Igorella maidipingensis" = Oelandiella maidipingensis Yü 1974
"Igorella emeiensis" = Securiconus emeiensis Yü 1979
"Bemella simplex" = Securiconus simplex Yü 1979
 Helcionellida - Carinopeltidae
"Igarkiella mirabilis" = Carinopelta mirabilis Yü 1979
  - Stenothecidae
Pseudoscenella levigata Parkhaev and Demidenko 2010
 Sachitida - Siphogonuchitidae
Aculifera
  - Halkieriidae
Halkieria undulata, Halkieria wangi, Halkieria sacciformis, Halkieria sthenobasis, "Ocruranus finial" = Ocruranus finial, "Ocruranus subpentaedrus" = Ocruranus finial, "Eohalobia diandongensis" = Ocruranus finial
Halkieria wangi Parkhaev and Demidenko 2010
Halkieria sacciformis Meshkova 1969
Halkieria sthenobasis Luo and Jiang 1982
"Ocruranus finial" = Ocruranus finial Liu 1979
"Ocruranus subpentaedrus" = Ocruranus finial Liu 1979
"Eohalobia diandongensis" = Ocruranus finial Liu 1979
Archaeooides granulatus
  -
Coeloscleritophora
 Chancelloriida - Chancelloriidae
 Chancelloriida -
Platyspinites elegans Parkhaev and Demidenko 2010
Cambroclavida
  - Zhijinitidae