uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Stratigraphy and trilobite biofacies of the Late Ordovician (Katian) of the Taimyr Peninsula, Arctic Russia
Uppsala University, Music and Museums, Museum of Evolution.ORCID iD: 0000-0001-8769-3572
Natural History Museum, London.
2018 (English)In: International Conference on Arctic Margins, 2018Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

The thick Late Ordovician (Katian) succession on the Taimyr Peninsula, Arctic Russia is divided into three regions showing a transition from a southern carbonate dominated facies, a central transitional facies, and a siliciclastic dominated northern facies. All regions are rich in trilobites but hitherto only the southern fauna was described. New collections have been added to this and allow a division into two very different biofacies for the Katian succession. Black limestone and shales have taxa similar to those of the peripheral Laurentian Scoto-Appalachian belt (Ampyxella, Ampxyina, Failleana, Pararemopleurides, Raymondella, Remopleurides, Robergia, Stygina, Taimyraspis, Telephina, and Toernquistia), and is termed the raphiophorid association. Further subdivisions may be possible, but the small number of new collections does not allow this at the moment. From shelf limestone a contrasting fauna contains monorakine trilobites (Carinopyge, Ceratevenkaspis, Elasmaspis, Evenkaspis, and Monorakos) endemic to the Siberian platform. Trilobites such as isotelines, Calyptaulax, Xylabion, and Cheirurus otherwise typical of inshore Laurentia co-occur with this fauna. This biofacies is termed the monorakine-cheirurid-illaenid association. Our results show that the Taimyr Peninsula, as an open shelf marginal to the Siberian Platform, typically would have the endemic monorakine-cheirurid-illaenid association, while similar conditions to those on the eastern fringes of the Iapetus Ocean permitted a short lived establishment of comparable faunas of the raphiophorid association.

Place, publisher, year, edition, pages
2018.
Keywords [en]
Late Ordovician, Taimyr, Arctic Russia, trilobites, biostratigraphy, raphiophorids, monorakines
National Category
Other Earth and Related Environmental Sciences
Research subject
Earth Science with specialization in Historical Geology and Palaeontology
Identifiers
URN: urn:nbn:se:uu:diva-371744OAI: oai:DiVA.org:uu-371744DiVA, id: diva2:1274141
Conference
International Conference on Arctic Margins, 8-16 June 2018, Stockholm
Available from: 2018-12-28 Created: 2018-12-28 Last updated: 2019-03-15Bibliographically approved

Open Access in DiVA

No full text in DiVA

Authority records BETA

Ebbestad, Jan Ove R.

Search in DiVA

By author/editor
Ebbestad, Jan Ove R.
By organisation
Museum of Evolution
Other Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 57 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf