Bed 18, Xiaotan Section (Cambrian to of China)

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: Sinosachites flabelliformis–Tannuolina zhangwentangi small shelly zone, Yu'anshan Formation, Meishucunian to Meishucunian (530.7 - 521.0 Ma)

• See Figure 1. This is the top of the Meishucunian

• bed-level stratigraphic resolution

Environment/lithology: marine; siltstone and 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 96303: authorized by Pete Wagner, entered by Pete Wagner on 31.05.2010

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.

Brachiopoda
  -
Micrina xiaofanensis Li and Xiao 2004
Aculifera
  - Halkieriidae
Watsonella crosbyi
  -
"Heraultipegma yunnanensis" = Watsonella crosbyi
"Heraultipegma yunnanensis" = Watsonella crosbyi Grabau 1900
Coeloscleritophora
 Chancelloriida - Chancelloriidae