First record of an Early Ordovician brachiopod and conodont fauna from Lapland, Sweden
An Early Ordovician fauna of linguliform brachiopods and euconodonts is described from the Alum Shale Formation in northernmost Vasterbotten County, northern Sweden. The fauna was recovered from a single carbonate concretion collected at an exposure near the northern shore of Lake Storvindeln. Despi...
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Uppsala universitet, Paleobiologi
2022
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ftuppsalauniv:oai:DiVA.org:uu-478573 2023-05-15T17:44:50+02:00 First record of an Early Ordovician brachiopod and conodont fauna from Lapland, Sweden Streng, Michael Rasmussen, Jan Audun Ebbestad, Jan Ove R. Weidner, Thomas 2022 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-478573 https://doi.org/10.1080/11035897.2022.2032822 eng eng Uppsala universitet, Paleobiologi Uppsala universitet, Evolutionsmuseet Museum Mors, Nykobing, Denmark.;Univ Copenhagen, Nat Hist Museum Denmark, Copenhagen, Denmark. Ravnholtvej 23, Rarup, Juelsminde, Denmark. Informa UK Limited GFF, 1103-5897, 2022, 144:1, s. 24-40 orcid:0000-0001-7790-0478 orcid:0000-0001-8769-3572 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-478573 doi:10.1080/11035897.2022.2032822 ISI:000808346000003 info:eu-repo/semantics/openAccess Ordovician Tremadocian linguliform brachiopods euconodonts Lapland Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Geology Geologi Article in journal info:eu-repo/semantics/article text 2022 ftuppsalauniv https://doi.org/10.1080/11035897.2022.2032822 2023-02-23T21:59:39Z An Early Ordovician fauna of linguliform brachiopods and euconodonts is described from the Alum Shale Formation in northernmost Vasterbotten County, northern Sweden. The fauna was recovered from a single carbonate concretion collected at an exposure near the northern shore of Lake Storvindeln. Despite of the fragmentary and tectonized preservation of the obtained fossils, at least eight different taxa of linguliform brachiopods and four species of euconodonts could be identified. Among the brachiopods, the ephippelasmatid Pomeraniotreta biernatae Bednarczyk, 1986 is most common; it is associated among others with the acrotretids Eurytreta cf. sabrinae (Callaway, 1877) and Ottenbyella sp., and a spinose specimen potentially representing the zhanatellid Thysanotos. Two of the brachiopod taxa appear to present new species, Pomeraniotreta n. sp. and Mytoella? n. sp., but additional material would be needed for a formal description. Euconodont specimens are rare and comprise coniform elements of Drepanodus arcuatus Pander, 1856, Drepanoistodus aff. amoenus (Lindstrom, 1955) sensu Lofgren (1994), Paroistodus numarcuatus (Lindstrom, 1955) and Rossodus aff. manitouensis Repetski & Ethington, 1983. Evaluation of the stratigraphic distribution of the different taxa of brachiopods and euconodonts under consideration of the local geology, suggests that the investigated sample represents a level in the upper part of the Tremadocian (Tr2) part of the Alum Shale Formation. The fauna represents the northernmost occurrence of age diagnostic Early Ordovician (Tremadocian) fossils in Sweden. Article in Journal/Newspaper Northern Sweden Lapland Uppsala University: Publications (DiVA) Storvindeln ENVELOPE(17.113,17.113,65.707,65.707) GFF 144 1 24 40 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Ordovician Tremadocian linguliform brachiopods euconodonts Lapland Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Geology Geologi |
spellingShingle |
Ordovician Tremadocian linguliform brachiopods euconodonts Lapland Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Geology Geologi Streng, Michael Rasmussen, Jan Audun Ebbestad, Jan Ove R. Weidner, Thomas First record of an Early Ordovician brachiopod and conodont fauna from Lapland, Sweden |
topic_facet |
Ordovician Tremadocian linguliform brachiopods euconodonts Lapland Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Geology Geologi |
description |
An Early Ordovician fauna of linguliform brachiopods and euconodonts is described from the Alum Shale Formation in northernmost Vasterbotten County, northern Sweden. The fauna was recovered from a single carbonate concretion collected at an exposure near the northern shore of Lake Storvindeln. Despite of the fragmentary and tectonized preservation of the obtained fossils, at least eight different taxa of linguliform brachiopods and four species of euconodonts could be identified. Among the brachiopods, the ephippelasmatid Pomeraniotreta biernatae Bednarczyk, 1986 is most common; it is associated among others with the acrotretids Eurytreta cf. sabrinae (Callaway, 1877) and Ottenbyella sp., and a spinose specimen potentially representing the zhanatellid Thysanotos. Two of the brachiopod taxa appear to present new species, Pomeraniotreta n. sp. and Mytoella? n. sp., but additional material would be needed for a formal description. Euconodont specimens are rare and comprise coniform elements of Drepanodus arcuatus Pander, 1856, Drepanoistodus aff. amoenus (Lindstrom, 1955) sensu Lofgren (1994), Paroistodus numarcuatus (Lindstrom, 1955) and Rossodus aff. manitouensis Repetski & Ethington, 1983. Evaluation of the stratigraphic distribution of the different taxa of brachiopods and euconodonts under consideration of the local geology, suggests that the investigated sample represents a level in the upper part of the Tremadocian (Tr2) part of the Alum Shale Formation. The fauna represents the northernmost occurrence of age diagnostic Early Ordovician (Tremadocian) fossils in Sweden. |
format |
Article in Journal/Newspaper |
author |
Streng, Michael Rasmussen, Jan Audun Ebbestad, Jan Ove R. Weidner, Thomas |
author_facet |
Streng, Michael Rasmussen, Jan Audun Ebbestad, Jan Ove R. Weidner, Thomas |
author_sort |
Streng, Michael |
title |
First record of an Early Ordovician brachiopod and conodont fauna from Lapland, Sweden |
title_short |
First record of an Early Ordovician brachiopod and conodont fauna from Lapland, Sweden |
title_full |
First record of an Early Ordovician brachiopod and conodont fauna from Lapland, Sweden |
title_fullStr |
First record of an Early Ordovician brachiopod and conodont fauna from Lapland, Sweden |
title_full_unstemmed |
First record of an Early Ordovician brachiopod and conodont fauna from Lapland, Sweden |
title_sort |
first record of an early ordovician brachiopod and conodont fauna from lapland, sweden |
publisher |
Uppsala universitet, Paleobiologi |
publishDate |
2022 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-478573 https://doi.org/10.1080/11035897.2022.2032822 |
long_lat |
ENVELOPE(17.113,17.113,65.707,65.707) |
geographic |
Storvindeln |
geographic_facet |
Storvindeln |
genre |
Northern Sweden Lapland |
genre_facet |
Northern Sweden Lapland |
op_relation |
GFF, 1103-5897, 2022, 144:1, s. 24-40 orcid:0000-0001-7790-0478 orcid:0000-0001-8769-3572 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-478573 doi:10.1080/11035897.2022.2032822 ISI:000808346000003 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1080/11035897.2022.2032822 |
container_title |
GFF |
container_volume |
144 |
container_issue |
1 |
container_start_page |
24 |
op_container_end_page |
40 |
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1766147125083635712 |