SwePub
Sök i LIBRIS databas

  Extended search

onr:"swepub:oai:DiVA.org:nrm-1809"
 

Search: onr:"swepub:oai:DiVA.org:nrm-1809" > A new lower Cambria...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

A new lower Cambrian shelly fossil biostratigraphy for South Australia

Betts, Marissa, J. (author)
Paterson, John, R. (author)
Jago, James, B. (author)
show more...
Jacquet, Sarah, M. (author)
Skovsted, Christian, 1974- (author)
Naturhistoriska riksmuseet,Enheten för paleobiologi
Topper, Timothy, P. (author)
Brock, Glenn, A. (author)
show less...
 (creator_code:org_t)
Elsevier BV, 2016
2016
English.
In: Gondwana Research. - : Elsevier BV. - 1342-937X .- 1878-0571. ; 36, s. 163-195
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • Definition of early Cambrian chronostratigraphic boundaries is problematic with many subdivisions stillawaiting ratification. Integrated multi-proxy data from well-resolved regional-scale schemes are ultimately the key to resolving broader issues of global correlationwithin the Cambrian. In Australia, early Cambrian biostratigraphy has been based predominantly on trilobites. Phosphatic shelly fauna have great potential as biostratigraphic tools, especially in pre-trilobitic strata because they are widespread and readily preserved, but they have remained underutilised. Here we demonstrate their value in a new biostratigraphic scheme for the early Cambrian of South Australia using a diverse shelly fauna including tommotiids, brachiopods, molluscs and bradoriids. Biostratigraphic data are derived from ten measured stratigraphic sections across the Arrowie Basin, targeting Hawker Group carbonates including the Wilkawillina, Wirrapowie and Ajax limestones and the Mernmerna Formation. The stratigraphic ranges of shelly fossils are predictable and repeatable across the Arrowie Basin, allowing three discrete shelly biozones to be identified, spanning Terreneuvian, Stage 2 to Series 2, Stages 3–4. The Kulparina rostrata Zone (new) and part of the overlyingMicrina etheridgei Zone (new) are pre-trilobitic (predominantly Terreneuvian). The Cambrian Series 2, Stage 3 Dailyatia odyssei Zone (new) features a very diverse shelly fauna and will be described in detail in a separate publication. These zones provide robust means to correlate Terreneuvian–Series 2 successions in neighbouring coeval basins in Australia, particularly the Stansbury Basin. Wider correlation is possible throughout East Gondwana, and especially with South China.

Keyword

Small shelly fossils
Tommotiids
Cambrian
Biostratigraphy
Correlation
The changing Earth
Den föränderliga jorden

Publication and Content Type

ref (subject category)
art (subject category)

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view