Bed 06, Xiaotan Section (Cambrian to of China)

Also known as Was Xiaotan [Dahai Mbr, Zhujiaqing Fm]

Where: Yunnan, China (27.9° N, 103.6° E: paleocoordinates 34.4° N, 164.6° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Watsonella crosbyi small shelly zone, Dahai Member (Zhujiaqing Formation), Meishucunian to Meishucunian (541.0 - 520.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Dahai Mbr of the Zhujiaqing Fm for which lithostratigraphic relationships are not discussed. AGE: Upper Meishucunian; probably Tommotian. STRATIGRAPHIC POSITION: From unknown position in regional section.

•See Figure 1.

•Redone based on Li & Xiao (2009).

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, phosphatic, cherty/siliceous dolomite

• ENVIRONMENT: Not stated in text.
• SPECIFIC LITHOLOGY: Lithology not stated in text, but stated to be cherty. LITHIFICATION: Assumed lithified as replaced by phosphate.

•Li & Xiao describe this as phosphatic dolomite

Size classes: macrofossils, mesofossils

Preservation: replaced with phosphate

Collection methods: bulk, chemical,

• COLLECTOR: Not stated in text, but presumably Steiner et al; unknown date. REPOSITORY: TU Berlin.

Primary reference: G. Li and S. Xiao. 2004. Tannuolina and Micrina (Tannuolinidae) from the Lower Cambrian of eastern Yunnan, south China, and their scleritome reconstruction. Journal of Paleontology 78(5):900-913 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86664: authorized by Austin Hendy, entered by Austin Hendy on 10.02.2009, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to characteristic taxa figured in publication. NOMENCLATURE: Not an authoritative publication but with modern nomenclature and with species resolution identifications.

•Li & Xiao's full list added later.

Cambroclavida
  - Zhijinitidae
Watsonella crosbyi
  -
Watsonella crosbyi Grabau 1900
Helcionelloida
 Pelagiellida - Aldanellidae
"Aldanella yanjiahensis" = Aldanella attleborensis
"Aldanella yanjiahensis" = Aldanella attleborensis Shaler and Foerste 1888
 Helcionellida - Coreospiridae
"Archaeospira sp." = Latouchella
"Archaeospira sp." = Latouchella Cobbold 1921
 Helcionellida - Helcionellidae
Igorella sp., "Ginella orectes" = Ilsanella orectus
Igorella sp. Rozanov et al. 1969
"Ginella orectes" = Ilsanella orectus Jiang 1982
Brachiopoda
  -
Lathamella symmetrica Li and Chen 1992
Hyolitha
 Orthothecida -
"Actinotheca mira" = Cupittheca mira He 1977