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The Ordovician of Scandinavia: a revised regional stage classification

Nielsen, Arne T. ; Ahlberg, Per LU ; Ebbestad, Jan Ove R. ; Hammer, Øyvind ; Harper, David A.T. ; Lindskog, Anders LU ; Rasmussen, Christian Mac Ørum and Stouge, Svend (2023) In Geological Society of London Special publications 532. p.267-315
Abstract
The Ordovician of Scandinavia (i.e. Denmark, Norway and Sweden) has been investigated for over two centuries and, through time, various chronostratigraphic schemes have been introduced, facilitating regional correlation. However, a modern chronostratigraphy has never been proposed. Here, we delineate ten regional stages for the Ordovician of Scandinavia, comprising, in ascending order, the Slemmestadian, Ottenbyan, Billingenian, Volkhovian, Kundan, Segerstadian, Dalbyan, Moldåan, Jerrestadian and Tommarpian. We propose to discontinue the use of the term Hunnebergian Regional Stage despite its Scandinavian origin; this interval is included in the new Ottenbyan Stage. The base of each stage, as (re)defined here, is selected to coincide with... (More)
The Ordovician of Scandinavia (i.e. Denmark, Norway and Sweden) has been investigated for over two centuries and, through time, various chronostratigraphic schemes have been introduced, facilitating regional correlation. However, a modern chronostratigraphy has never been proposed. Here, we delineate ten regional stages for the Ordovician of Scandinavia, comprising, in ascending order, the Slemmestadian, Ottenbyan, Billingenian, Volkhovian, Kundan, Segerstadian, Dalbyan, Moldåan, Jerrestadian and Tommarpian. We propose to discontinue the use of the term Hunnebergian Regional Stage despite its Scandinavian origin; this interval is included in the new Ottenbyan Stage. The base of each stage, as (re)defined here, is selected to coincide with the appearance of a characteristic fossil taxon and delimited at the top by the base of the overlying stage. The stage boundaries generally coincide with or approximate to significant changes in the depositional environment that are recognizable across Scandinavia from the carbonate platform to the foreland basin. Local efficacy has been the primary criterion for the recognition of Scandinavian stage boundaries rather than approximating to the global or East Baltic stage boundaries. It is proposed to abolish the Baltoscandian regional series and subseries, as correlation with the global series is sufficiently precise to make these higher rank regional schemes redundant. (Less)
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author
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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
A Global Synthesis of the Ordovician System: Part 1
series title
Geological Society of London Special publications
volume
532
pages
51 pages
external identifiers
  • scopus:85167697142
DOI
10.1144/SP532-2022-157
language
English
LU publication?
yes
id
6e9db253-76ee-4bfc-a396-0ef55130281b
date added to LUP
2024-12-04 18:45:30
date last changed
2025-06-10 09:46:15
@inbook{6e9db253-76ee-4bfc-a396-0ef55130281b,
  abstract     = {{The Ordovician of Scandinavia (i.e. Denmark, Norway and Sweden) has been investigated for over two centuries and, through time, various chronostratigraphic schemes have been introduced, facilitating regional correlation. However, a modern chronostratigraphy has never been proposed. Here, we delineate ten regional stages for the Ordovician of Scandinavia, comprising, in ascending order, the Slemmestadian, Ottenbyan, Billingenian, Volkhovian, Kundan, Segerstadian, Dalbyan, Moldåan, Jerrestadian and Tommarpian. We propose to discontinue the use of the term Hunnebergian Regional Stage despite its Scandinavian origin; this interval is included in the new Ottenbyan Stage. The base of each stage, as (re)defined here, is selected to coincide with the appearance of a characteristic fossil taxon and delimited at the top by the base of the overlying stage. The stage boundaries generally coincide with or approximate to significant changes in the depositional environment that are recognizable across Scandinavia from the carbonate platform to the foreland basin. Local efficacy has been the primary criterion for the recognition of Scandinavian stage boundaries rather than approximating to the global or East Baltic stage boundaries. It is proposed to abolish the Baltoscandian regional series and subseries, as correlation with the global series is sufficiently precise to make these higher rank regional schemes redundant.}},
  author       = {{Nielsen, Arne T. and Ahlberg, Per and Ebbestad, Jan Ove R. and Hammer, Øyvind and Harper, David A.T. and Lindskog, Anders and Rasmussen, Christian Mac Ørum and Stouge, Svend}},
  booktitle    = {{A Global Synthesis of the Ordovician System: Part 1}},
  language     = {{eng}},
  month        = {{07}},
  pages        = {{267--315}},
  series       = {{Geological Society of London Special publications}},
  title        = {{The Ordovician of Scandinavia: a revised regional stage classification}},
  url          = {{http://dx.doi.org/10.1144/SP532-2022-157}},
  doi          = {{10.1144/SP532-2022-157}},
  volume       = {{532}},
  year         = {{2023}},
}