Xianfeng xif1/15 (Cambrian of China)

Where: Yunnan, China (25.5° N, 103.1° E: paleocoordinates 35.7° N, 162.7° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Paragloborilus subglobosus - Purella squamulosa small shelly zone, Zhongyicun Member (Dengying Formation), Meishucunian (530.7 - 521.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, dolomitic, oncoidal, ooidal phosphorite

• ...dolostone and dolomitic phosphorite is 1 m thick bearing abundant ooids, oncoids and chert or phosphate nodules.

Size class: microfossils

Preservation: replaced with phosphate

Primary reference: B. Yang, M. Steiner, G. X. Li and H. Heupp. 2014. Terreneuvian small shelly faunas of East Yunnan (South China) and their biostratigraphic implication. Palaeogeography, Palaeoclimatology, Palaeoecology 398:28-58 [L. Na/L. Na/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 201519: authorized by Lin Na, entered by Lin Na on 13.05.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Hyolitha
 Orthothecida - Circothecidae
Yunnanopleura accurata
  - Maikhanellidae
"Yunnanopleura biformis" = Yunnanopleura accurata
"Yunnanopleura biformis" = Yunnanopleura accurata Bokova 1985
Purella
  - Maikhanellidae
Purella squamulosa, "Maikhanella latispina" = Purella
Purella squamulosa Qian and Bengtson 1989
"Maikhanella latispina" = Purella
Maikhanella cambrina
  - Maikhanellidae
"Maikhanella cambrina" = Canopoconus superatus
"Maikhanella cambrina" = Canopoconus superatus Feng et al. 2001
Helcionelloida
  - Helcionellidae
 Helcionellida - Rugaeconidae
Xianfengella prima He and Yang 1982
 Sachitida - Siphogonuchitidae
Aculifera
  - Halkieriidae