Xianfeng xif1/19 (Cambrian of China)

Where: Yunnan, China (25.5° N, 103.1° E: paleocoordinates 36.2° N, 163.0° E)

• coordinate stated in text

• outcrop-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, cherty/siliceous phosphorite

• The Dahai Member is characterized by whitish dolostone, silty dolostone and few layers of chertified phosphorite. SSFs are common in the silty dolostone that overlies a chertified phosphorite.

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. 398:28-58 [L. Na/L. Na]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 201521: authorized by Lin Na, entered by Lin Na on 13.05.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

 Hyolithelminthida - Torellellidae
 Sachitida - Siphogonuchitidae
Helcionelloida
 Helcionellida - Helcionellidae
Oelandiella korobkovi Vostokova 1962
"Igorella maidipingensis" = Oelandiella maidipingensis Yü 1974
Obtusoconus honorabilis Qian et al. 1979
"Bemella simplex" = Securiconus simplex Yü 1979
Hyolitha
 Orthothecida -
"Actinotheca mira" = Cupittheca mira He 1977
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloria eros Walcott 1920
Chancelloria symmetrica Vassiljeva 1985