Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen
Humeri of Pessopteryx nisseri and vertebrae referred to Cymbospondylus sp. are described from the Lower Saurian niveau at Marmierfjellet, Spitsbergen. This is the most well-preserved Cymbospondylus material described from the Early Triassic so far, and the first description of new material of Pessop...
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ftoslouniv:oai:www.duo.uio.no:10852/71102 2023-05-15T18:29:49+02:00 Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen Engelschiøn, Victoria Sjøholt Delsett, Lene Liebe Roberts, Aubrey Jane Hurum, Jørn Harald 2018-12-05T10:49:53Z http://hdl.handle.net/10852/71102 http://urn.nb.no/URN:NBN:no-74211 https://doi.org/10.17850/njg98-2-05 EN eng http://urn.nb.no/URN:NBN:no-74211 Engelschiøn, Victoria Sjøholt Delsett, Lene Liebe Roberts, Aubrey Jane Hurum, Jørn Harald . Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen. Norwegian Journal of Geology. 2018, 98(2), 239-266 http://hdl.handle.net/10852/71102 1639348 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Norwegian Journal of Geology&rft.volume=98&rft.spage=239&rft.date=2018 Norwegian Journal of Geology 98 2 239 266 https://doi.org/10.17850/njg98-2-05 URN:NBN:no-74211 Fulltext https://www.duo.uio.no/bitstream/handle/10852/71102/2/NJG_Vol98_Nr2_Engelschioen_150.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 0801-4736 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2018 ftoslouniv https://doi.org/10.17850/njg98-2-05 2020-06-21T08:52:47Z Humeri of Pessopteryx nisseri and vertebrae referred to Cymbospondylus sp. are described from the Lower Saurian niveau at Marmierfjellet, Spitsbergen. This is the most well-preserved Cymbospondylus material described from the Early Triassic so far, and the first description of new material of Pessopteryx nisseri since the species was established. The taxa are not represented by articulated or overlapping material. Herein, the most diagnostic material of both taxa is described and discussed, and the possibility that there is only one large-sized taxon present is suggested. Several specimens of Ichthyosauria indet. are also described. Comparisons are made to previously described specimens from the Lower Saurian niveau, including the disputed Merriamosaurus hulkei. The Boreal Ocean of Svalbard is of particular interest due to its position at the northern margin of Pangea, between the Early Triassic localities of today’s British Colombia and Nevada, and South China. More than 2000 three-dimensional and disarticulated fragments show that large-sized ichthyosaurs had evolved and were numerous by the Early Triassic. This is the first time since the collections of Carl Wiman that the Lower Saurian niveau has been systematically sampled and placed in the modern stratigraphy. Article in Journal/Newspaper Svalbard Spitsbergen Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Svalbard Vikinghøgda ENVELOPE(23.167,23.167,-72.067,-72.067) Marmierfjellet ENVELOPE(16.646,16.646,78.299,78.299) Norwegian Journal of Geology |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Humeri of Pessopteryx nisseri and vertebrae referred to Cymbospondylus sp. are described from the Lower Saurian niveau at Marmierfjellet, Spitsbergen. This is the most well-preserved Cymbospondylus material described from the Early Triassic so far, and the first description of new material of Pessopteryx nisseri since the species was established. The taxa are not represented by articulated or overlapping material. Herein, the most diagnostic material of both taxa is described and discussed, and the possibility that there is only one large-sized taxon present is suggested. Several specimens of Ichthyosauria indet. are also described. Comparisons are made to previously described specimens from the Lower Saurian niveau, including the disputed Merriamosaurus hulkei. The Boreal Ocean of Svalbard is of particular interest due to its position at the northern margin of Pangea, between the Early Triassic localities of today’s British Colombia and Nevada, and South China. More than 2000 three-dimensional and disarticulated fragments show that large-sized ichthyosaurs had evolved and were numerous by the Early Triassic. This is the first time since the collections of Carl Wiman that the Lower Saurian niveau has been systematically sampled and placed in the modern stratigraphy. |
format |
Article in Journal/Newspaper |
author |
Engelschiøn, Victoria Sjøholt Delsett, Lene Liebe Roberts, Aubrey Jane Hurum, Jørn Harald |
spellingShingle |
Engelschiøn, Victoria Sjøholt Delsett, Lene Liebe Roberts, Aubrey Jane Hurum, Jørn Harald Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen |
author_facet |
Engelschiøn, Victoria Sjøholt Delsett, Lene Liebe Roberts, Aubrey Jane Hurum, Jørn Harald |
author_sort |
Engelschiøn, Victoria Sjøholt |
title |
Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen |
title_short |
Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen |
title_full |
Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen |
title_fullStr |
Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen |
title_full_unstemmed |
Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen |
title_sort |
large-sized ichthyosaurs from the lower saurian niveau of the vikinghøgda formation (early triassic), marmierfjellet, spitsbergen |
publishDate |
2018 |
url |
http://hdl.handle.net/10852/71102 http://urn.nb.no/URN:NBN:no-74211 https://doi.org/10.17850/njg98-2-05 |
long_lat |
ENVELOPE(23.167,23.167,-72.067,-72.067) ENVELOPE(16.646,16.646,78.299,78.299) |
geographic |
Svalbard Vikinghøgda Marmierfjellet |
geographic_facet |
Svalbard Vikinghøgda Marmierfjellet |
genre |
Svalbard Spitsbergen |
genre_facet |
Svalbard Spitsbergen |
op_source |
0801-4736 |
op_relation |
http://urn.nb.no/URN:NBN:no-74211 Engelschiøn, Victoria Sjøholt Delsett, Lene Liebe Roberts, Aubrey Jane Hurum, Jørn Harald . Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen. Norwegian Journal of Geology. 2018, 98(2), 239-266 http://hdl.handle.net/10852/71102 1639348 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Norwegian Journal of Geology&rft.volume=98&rft.spage=239&rft.date=2018 Norwegian Journal of Geology 98 2 239 266 https://doi.org/10.17850/njg98-2-05 URN:NBN:no-74211 Fulltext https://www.duo.uio.no/bitstream/handle/10852/71102/2/NJG_Vol98_Nr2_Engelschioen_150.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17850/njg98-2-05 |
container_title |
Norwegian Journal of Geology |
_version_ |
1766213204086620160 |