Laolin lal18b (Cambrian of China)

Where: Yunnan, China (26.3° N, 103.2° E: paleocoordinates 35.0° N, 163.1° 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)

• Fortunian, Cambrian

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, white dolomite

• About 9.5 m of phospholithoclastic dolostone and pure whitish dolostone.

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 201548: authorized by Lin Na, entered by Lin Na on 13.05.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
 Hyolithelminthida - Torellellidae
Brachiopoda
  -
Hyolitha
 Orthothecida - Circothecidae
 Orthothecida -
Maikhanella cambrina
  - Maikhanellidae
"Maikhanella cambrina" = Canopoconus superatus
"Maikhanella cambrina" = Canopoconus superatus Feng et al. 2001
Aculifera
  - Halkieriidae
Halkieria sthenobasis Luo and Jiang 1982
 Sachitida - Siphogonuchitidae
Helcionelloida
 Helcionellida - Carinopeltidae
"Igarkiella levis" = Carinopelta mirabilis
"Igarkiella levis" = Carinopelta mirabilis Yü 1979
  - Helcionellidae
Oelandiella korobkovi Vostokova 1962
"Bemella simplex" = Securiconus simplex Yü 1979
Aetholicopalla adnata
  -
Aetholicopalla adnata Bengston et al. 1990