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The Lerhamn drill core and its bearing for the graptolite biostratigraphy of the Ordovician Toyen Shale in Scania, southern Sweden

Maletz, Joerg and Ahlberg, Per LU (2011) In Lethaia 44(3). p.350-368
Abstract
A drill core through the Lower Ordovician Toyen Shale Formation at Lerhamn, NW Scania, southern Sweden, provides important new information for the precise biostratigraphic resolution of the Floian to lower Darriwilian time interval in southern Scandinavia. The Hunnegraptus copiosus, Tetragraptus phyllograptoides, Cymatograptus protobalticus (new), Baltograptus vacillans (new), Baltograptus sp. cf. Baltograptus deflexus (new), Baltograptus minutus (new), Isograptus victoriae, Undulograptus austrodentatus (Arienigraptus zhejiangensis and Undulograptus sinicus Subzones) and the (?) Corymbograptus retroflexus (new) biozones are differentiated in the core and their correlation in Scania is discussed. The Lerhamn drill core provides the most... (More)
A drill core through the Lower Ordovician Toyen Shale Formation at Lerhamn, NW Scania, southern Sweden, provides important new information for the precise biostratigraphic resolution of the Floian to lower Darriwilian time interval in southern Scandinavia. The Hunnegraptus copiosus, Tetragraptus phyllograptoides, Cymatograptus protobalticus (new), Baltograptus vacillans (new), Baltograptus sp. cf. Baltograptus deflexus (new), Baltograptus minutus (new), Isograptus victoriae, Undulograptus austrodentatus (Arienigraptus zhejiangensis and Undulograptus sinicus Subzones) and the (?) Corymbograptus retroflexus (new) biozones are differentiated in the core and their correlation in Scania is discussed. The Lerhamn drill core provides the most detailed graptolite record of the Floian Stage in Scandinavia. The interval is dominated by a number of species of the genus Baltograptus, endemic to the Atlantic Faunal realm and highly useful for regional biostratigraphic correlation. The biostratigraphic framework is based on endemic and pandemic faunal elements. The mixture of both elements in the drill core allows a more precise inter-continental correlation of Lower to Middle Ordovician graptolite faunas and may - in the future - provide information as to the climatic history of regions dominated by Baltograptus faunas in the Floian. The (?) C. retroflexus Biozone is based on species originally described from Bohemia, but the record of the zone in the Lerhamn drill core indicates a wider distribution of its fauna. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Biostratigraphy, graptolites, Ordovician, Scania, Sweden
in
Lethaia
volume
44
issue
3
pages
350 - 368
publisher
Taylor & Francis
external identifiers
  • wos:000292928100011
  • scopus:79960503527
ISSN
0024-1164
DOI
10.1111/j.1502-3931.2010.00246.x
language
English
LU publication?
yes
id
4cbb513c-ac91-43ea-b43b-508e872117f6 (old id 2091562)
date added to LUP
2011-08-25 14:18:36
date last changed
2017-06-04 03:52:14
@article{4cbb513c-ac91-43ea-b43b-508e872117f6,
  abstract     = {A drill core through the Lower Ordovician Toyen Shale Formation at Lerhamn, NW Scania, southern Sweden, provides important new information for the precise biostratigraphic resolution of the Floian to lower Darriwilian time interval in southern Scandinavia. The Hunnegraptus copiosus, Tetragraptus phyllograptoides, Cymatograptus protobalticus (new), Baltograptus vacillans (new), Baltograptus sp. cf. Baltograptus deflexus (new), Baltograptus minutus (new), Isograptus victoriae, Undulograptus austrodentatus (Arienigraptus zhejiangensis and Undulograptus sinicus Subzones) and the (?) Corymbograptus retroflexus (new) biozones are differentiated in the core and their correlation in Scania is discussed. The Lerhamn drill core provides the most detailed graptolite record of the Floian Stage in Scandinavia. The interval is dominated by a number of species of the genus Baltograptus, endemic to the Atlantic Faunal realm and highly useful for regional biostratigraphic correlation. The biostratigraphic framework is based on endemic and pandemic faunal elements. The mixture of both elements in the drill core allows a more precise inter-continental correlation of Lower to Middle Ordovician graptolite faunas and may - in the future - provide information as to the climatic history of regions dominated by Baltograptus faunas in the Floian. The (?) C. retroflexus Biozone is based on species originally described from Bohemia, but the record of the zone in the Lerhamn drill core indicates a wider distribution of its fauna.},
  author       = {Maletz, Joerg and Ahlberg, Per},
  issn         = {0024-1164},
  keyword      = {Biostratigraphy,graptolites,Ordovician,Scania,Sweden},
  language     = {eng},
  number       = {3},
  pages        = {350--368},
  publisher    = {Taylor & Francis},
  series       = {Lethaia},
  title        = {The Lerhamn drill core and its bearing for the graptolite biostratigraphy of the Ordovician Toyen Shale in Scania, southern Sweden},
  url          = {http://dx.doi.org/10.1111/j.1502-3931.2010.00246.x},
  volume       = {44},
  year         = {2011},
}