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The middle Cambrian cosmopolitan key species Lejopyge laevigata and its biozone: new data from Sweden

Axheimer, Niklas LU ; Eriksson, Mats LU ; Ahlberg, Per LU and Bengtsson, Anders (2006) In Geological Magazine 143(4). p.447-455
Abstract
The middle Cambrian Lejopyge laevigata Zone is poorly exposed in Scandinavia. Both this zone, however, and the succeeding Agnostus pisiformis Zone are well exposed at a classic locality at Gudhem, Vastergotland, south-central Sweden. The sequences consist of finely laminated alum shale with scattered stinkstone (orsten) lenses. Three measured and sampled sections yielded a diverse fossil fauna, dominated by trilobites, in particular agnostoids, and the bradoriid Anabarochilina primordialis. Fossils are excellently preserved but restricted to the stinkstones. The L. laevigata Zone at Gudhem includes several geographically widespread key agnostoid species, notably Tomagnostella sulcifera, Clavagnostus spinosus, Glaberagnostus altaicus,... (More)
The middle Cambrian Lejopyge laevigata Zone is poorly exposed in Scandinavia. Both this zone, however, and the succeeding Agnostus pisiformis Zone are well exposed at a classic locality at Gudhem, Vastergotland, south-central Sweden. The sequences consist of finely laminated alum shale with scattered stinkstone (orsten) lenses. Three measured and sampled sections yielded a diverse fossil fauna, dominated by trilobites, in particular agnostoids, and the bradoriid Anabarochilina primordialis. Fossils are excellently preserved but restricted to the stinkstones. The L. laevigata Zone at Gudhem includes several geographically widespread key agnostoid species, notably Tomagnostella sulcifera, Clavagnostus spinosus, Glaberagnostus altaicus, Lejopyge laevigata and L. armata. The L. laevigata Zone in Scandinavia is here extended to include the traditional Solenopleura? brachymetopa Zone, and its lower boundary is defined by the FAD of L. laevigata. Trilobite evidence shows that the upper part of the Scandinavian L. laevigata Zone approximately correlates with the Proagnostus bulbus Zone of China and elsewhere. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Lejopyge, middle Cambrian, global correlation, biostratigraphy, Sweden, laevigata Zone
in
Geological Magazine
volume
143
issue
4
pages
447 - 455
publisher
Cambridge University Press
external identifiers
  • wos:000239972200003
  • scopus:33746658568
ISSN
0016-7568
DOI
10.1017/S0016756806002007
language
English
LU publication?
yes
id
9cfbe8a0-1e2a-41a7-92c0-72aad670f6b5 (old id 395196)
date added to LUP
2016-04-01 12:00:12
date last changed
2021-08-04 05:30:55
@article{9cfbe8a0-1e2a-41a7-92c0-72aad670f6b5,
  abstract     = {The middle Cambrian Lejopyge laevigata Zone is poorly exposed in Scandinavia. Both this zone, however, and the succeeding Agnostus pisiformis Zone are well exposed at a classic locality at Gudhem, Vastergotland, south-central Sweden. The sequences consist of finely laminated alum shale with scattered stinkstone (orsten) lenses. Three measured and sampled sections yielded a diverse fossil fauna, dominated by trilobites, in particular agnostoids, and the bradoriid Anabarochilina primordialis. Fossils are excellently preserved but restricted to the stinkstones. The L. laevigata Zone at Gudhem includes several geographically widespread key agnostoid species, notably Tomagnostella sulcifera, Clavagnostus spinosus, Glaberagnostus altaicus, Lejopyge laevigata and L. armata. The L. laevigata Zone in Scandinavia is here extended to include the traditional Solenopleura? brachymetopa Zone, and its lower boundary is defined by the FAD of L. laevigata. Trilobite evidence shows that the upper part of the Scandinavian L. laevigata Zone approximately correlates with the Proagnostus bulbus Zone of China and elsewhere.},
  author       = {Axheimer, Niklas and Eriksson, Mats and Ahlberg, Per and Bengtsson, Anders},
  issn         = {0016-7568},
  language     = {eng},
  number       = {4},
  pages        = {447--455},
  publisher    = {Cambridge University Press},
  series       = {Geological Magazine},
  title        = {The middle Cambrian cosmopolitan key species Lejopyge laevigata and its biozone: new data from Sweden},
  url          = {http://dx.doi.org/10.1017/S0016756806002007},
  doi          = {10.1017/S0016756806002007},
  volume       = {143},
  year         = {2006},
}