A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland)
Artiopoda was a diverse group of Palaeozoic euarthropods that proliferated in the early Palaeozoic, epitomized by the ubiquitous trilobites. Their possible phylogenetic position outside mandibulates and chelicerates offers the potential for understanding the evolution of euarthropods in more detail....
Published in: | Papers in Palaeontology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://hdl.handle.net/1983/09d0bc6d-6cdf-42fb-83da-093437420fe6 https://research-information.bris.ac.uk/en/publications/09d0bc6d-6cdf-42fb-83da-093437420fe6 https://doi.org/10.1002/spp2.1495 http://www.scopus.com/inward/record.url?scp=85162102753&partnerID=8YFLogxK |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/09d0bc6d-6cdf-42fb-83da-093437420fe6 2024-02-04T10:00:48+01:00 A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland) Berks, Harry O. Lunde Nielsen, Morten Flannery-Sutherland, Joseph Thorshøj Nielsen, Arne Park, Tae Yoon S. Vinther, Jakob 2023-05-01 https://hdl.handle.net/1983/09d0bc6d-6cdf-42fb-83da-093437420fe6 https://research-information.bris.ac.uk/en/publications/09d0bc6d-6cdf-42fb-83da-093437420fe6 https://doi.org/10.1002/spp2.1495 http://www.scopus.com/inward/record.url?scp=85162102753&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Berks , H O , Lunde Nielsen , M , Flannery-Sutherland , J , Thorshøj Nielsen , A , Park , T Y S & Vinther , J 2023 , ' A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland) ' , Papers in Palaeontology , vol. 9 , no. 3 , e1495 . https://doi.org/10.1002/spp2.1495 Artiopoda Euarthropoda Sirius Passet Lagerstätte article 2023 ftubristolcris https://doi.org/10.1002/spp2.1495 2024-01-11T23:50:57Z Artiopoda was a diverse group of Palaeozoic euarthropods that proliferated in the early Palaeozoic, epitomized by the ubiquitous trilobites. Their possible phylogenetic position outside mandibulates and chelicerates offers the potential for understanding the evolution of euarthropods in more detail. However, this opportunity remains unexploited given that identification of deep-splitting artiopodans remains to be fully explored. Here, we describe a new non-trilobite artiopodan from the lower Cambrian Sirius Passet Lagerstätte, North Greenland. Thulaspis tholops gen. et sp. nov. is a large species with a broad, domed head shield, followed by a trunk consisting of 15 thoracic tergites and a small pygidium, giving the body an ovoid appearance when viewed dorsally. Thulaspis is distinctive with its rounded genae and anterior thoracic pleural tips, as well as short pleural spines posteriorly. A heart-shaped hypostome with an anterior lobe is present. Appendages, partly obscured by the tergal skeleton, have many moderate length gnathobasic spines, and large flap-like exopods with a fringe of small setae. Cladistic analyses recover Thulaspis as the sister taxon to Squamacula, a genus found in the Chengjiang and Emu Bay Shale biotas, in either a polytomy with a number of artiopodan taxa or as a sister group to all other artiopodans, indicating an important role in understanding the roots of artiopodan anatomy and evolution. Article in Journal/Newspaper Greenland North Greenland University of Bristol: Bristol Research Greenland Sirius ENVELOPE(163.250,163.250,-84.133,-84.133) Papers in Palaeontology 9 3 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
topic |
Artiopoda Euarthropoda Sirius Passet Lagerstätte |
spellingShingle |
Artiopoda Euarthropoda Sirius Passet Lagerstätte Berks, Harry O. Lunde Nielsen, Morten Flannery-Sutherland, Joseph Thorshøj Nielsen, Arne Park, Tae Yoon S. Vinther, Jakob A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland) |
topic_facet |
Artiopoda Euarthropoda Sirius Passet Lagerstätte |
description |
Artiopoda was a diverse group of Palaeozoic euarthropods that proliferated in the early Palaeozoic, epitomized by the ubiquitous trilobites. Their possible phylogenetic position outside mandibulates and chelicerates offers the potential for understanding the evolution of euarthropods in more detail. However, this opportunity remains unexploited given that identification of deep-splitting artiopodans remains to be fully explored. Here, we describe a new non-trilobite artiopodan from the lower Cambrian Sirius Passet Lagerstätte, North Greenland. Thulaspis tholops gen. et sp. nov. is a large species with a broad, domed head shield, followed by a trunk consisting of 15 thoracic tergites and a small pygidium, giving the body an ovoid appearance when viewed dorsally. Thulaspis is distinctive with its rounded genae and anterior thoracic pleural tips, as well as short pleural spines posteriorly. A heart-shaped hypostome with an anterior lobe is present. Appendages, partly obscured by the tergal skeleton, have many moderate length gnathobasic spines, and large flap-like exopods with a fringe of small setae. Cladistic analyses recover Thulaspis as the sister taxon to Squamacula, a genus found in the Chengjiang and Emu Bay Shale biotas, in either a polytomy with a number of artiopodan taxa or as a sister group to all other artiopodans, indicating an important role in understanding the roots of artiopodan anatomy and evolution. |
format |
Article in Journal/Newspaper |
author |
Berks, Harry O. Lunde Nielsen, Morten Flannery-Sutherland, Joseph Thorshøj Nielsen, Arne Park, Tae Yoon S. Vinther, Jakob |
author_facet |
Berks, Harry O. Lunde Nielsen, Morten Flannery-Sutherland, Joseph Thorshøj Nielsen, Arne Park, Tae Yoon S. Vinther, Jakob |
author_sort |
Berks, Harry O. |
title |
A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland) |
title_short |
A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland) |
title_full |
A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland) |
title_fullStr |
A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland) |
title_full_unstemmed |
A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland) |
title_sort |
possibly deep branching artiopodan arthropod from the lower cambrian sirius passet lagerstätte (north greenland) |
publishDate |
2023 |
url |
https://hdl.handle.net/1983/09d0bc6d-6cdf-42fb-83da-093437420fe6 https://research-information.bris.ac.uk/en/publications/09d0bc6d-6cdf-42fb-83da-093437420fe6 https://doi.org/10.1002/spp2.1495 http://www.scopus.com/inward/record.url?scp=85162102753&partnerID=8YFLogxK |
long_lat |
ENVELOPE(163.250,163.250,-84.133,-84.133) |
geographic |
Greenland Sirius |
geographic_facet |
Greenland Sirius |
genre |
Greenland North Greenland |
genre_facet |
Greenland North Greenland |
op_source |
Berks , H O , Lunde Nielsen , M , Flannery-Sutherland , J , Thorshøj Nielsen , A , Park , T Y S & Vinther , J 2023 , ' A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland) ' , Papers in Palaeontology , vol. 9 , no. 3 , e1495 . https://doi.org/10.1002/spp2.1495 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/spp2.1495 |
container_title |
Papers in Palaeontology |
container_volume |
9 |
container_issue |
3 |
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1789966271999115264 |