Bed 36, Maidiping [Maidiping Fm] (Cambrian of China)

Where: Shaanxi, China (29.5° N, 103.4° E: paleocoordinates 32.3° N, 165.6° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Watsonella crosbyi small shelly zone, Maidiping Formation, Tommotian (525.5 - 521.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Maidiping Fm for which lithostratigraphic relationships are not discussed. AGE: Lower Meishucunian; Tommotian. STRATIGRAPHIC POSITION: From bed 36, for which stratigraphic position in local area is not stated.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

• ENVIRONMENT: Not stated in text.
• SPECIFIC LITHOLOGY: Lithology not stated in text. LITHIFICATION: Assumed lithified as replaced by phosphate.

Size class: macrofossils

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: M. Steiner, G. Li, Y. Qian, M. Zhu, and B.-D. Erdtmann. 2007. Neoproterozoic to early Cambrian small shelly fossil assemblages and a revised biostratigraphic correlation of the Yangtze Platform (China). Palaeogeography, Palaeoclimatology, Palaeoecology 254:67-99 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86665: authorized by Austin Hendy, entered by Austin Hendy on 10.02.2009

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.
Helcionelloida
  - Stenothecidae
Watsonella crosbyi Grabau 1900
  - Helcionellidae
Oelandiella korobkovi Vostokova 1962
Hyolitha
 Orthothecida -