Small carbonaceous fossils (SCFs) from North Greenland : new light on metazoan diversity in early Cambrian shelf environments
The Sirius Passet Lagerstätte of North Greenland is one of the oldest records of soft-bodied metazoan-dominated ecosystems from the early Cambrian. The Lagerstätte site itself is restricted to just a single c.a. 1-km-long outcrop located offshore from the shelf margin, in an area affected by metamor...
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Uppsala universitet, Paleobiologi
2021
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ftuppsalauniv:oai:DiVA.org:uu-433640 2023-06-11T04:12:10+02:00 Small carbonaceous fossils (SCFs) from North Greenland : new light on metazoan diversity in early Cambrian shelf environments Wallet, Elise Slater, Ben Willman, Sebastian Peel, John Stuart 2021 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-433640 https://doi.org/10.1002/spp2.1347 eng eng Uppsala universitet, Paleobiologi Papers in Palaeontology, 2056-2799, 2021, 7:3, s. 1403-1433 orcid:0000-0002-5796-0139 orcid:0000-0002-5774-9114 orcid:0000-0002-1434-7131 orcid:0000-0002-1774-7931 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-433640 doi:10.1002/spp2.1347 ISI:000600017800001 info:eu-repo/semantics/openAccess small carbonaceous fossils Cambrian Burgess Shale-type Lagerstätten Crustacea bivalved arthropod Greenland Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Article in journal info:eu-repo/semantics/article text 2021 ftuppsalauniv https://doi.org/10.1002/spp2.1347 2023-04-26T22:30:33Z The Sirius Passet Lagerstätte of North Greenland is one of the oldest records of soft-bodied metazoan-dominated ecosystems from the early Cambrian. The Lagerstätte site itself is restricted to just a single c.a. 1-km-long outcrop located offshore from the shelf margin, in an area affected by metamorphic alteration during the Ellesmerian Orogeny (Devonian–Early Carboniferous). The recent recovery of small carbonaceous fossils (SCFs) to the south, in areas that escaped the effects of this deformation, has substantially expanded the known coverage of organic preservation into shallower water depositional settings in this region. Here, we describe additional SCF assemblages from the siliciclastic shelf succession of the Buen Formation (Cambrian Series 2, stages 3–4; c.a. 515 Ma), expanding the previously documented SCF biota. Newly recovered material indicates a rich diversity of non-mineralizing metazoans, chiefly represented by arthropod remains. These include the filtering and grinding elements of a sophisticated crustacean feeding apparatus (the oldest crustacean remains reported to date), alongside an assortment of bradoriid sclerites, including almost complete, 3D valves, which tie together a number of SCFs previously found in isolation. Other metazoan remains include various trilobite cuticles, diverse scalidophoran sclerites, and a range of metazoan fragments of uncertain affinity. This shallower water assemblage differs substantially from the Sirius Passet biota, which is dominated by problematic euarthropod stem-group members and sponges. Although some of these discrepancies are attributable to taphonomic or temporal factors, these lateral variations in taxonomic composition also point to significant palaeoenvironmental and/or palaeoecological controls on early Cambrian metazoan communities. Article in Journal/Newspaper Greenland North Greenland Uppsala University: Publications (DiVA) Greenland Burgess ENVELOPE(76.128,76.128,-69.415,-69.415) Sirius ENVELOPE(163.250,163.250,-84.133,-84.133) Papers in Palaeontology 7 3 1403 1433 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
small carbonaceous fossils Cambrian Burgess Shale-type Lagerstätten Crustacea bivalved arthropod Greenland Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap |
spellingShingle |
small carbonaceous fossils Cambrian Burgess Shale-type Lagerstätten Crustacea bivalved arthropod Greenland Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Wallet, Elise Slater, Ben Willman, Sebastian Peel, John Stuart Small carbonaceous fossils (SCFs) from North Greenland : new light on metazoan diversity in early Cambrian shelf environments |
topic_facet |
small carbonaceous fossils Cambrian Burgess Shale-type Lagerstätten Crustacea bivalved arthropod Greenland Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap |
description |
The Sirius Passet Lagerstätte of North Greenland is one of the oldest records of soft-bodied metazoan-dominated ecosystems from the early Cambrian. The Lagerstätte site itself is restricted to just a single c.a. 1-km-long outcrop located offshore from the shelf margin, in an area affected by metamorphic alteration during the Ellesmerian Orogeny (Devonian–Early Carboniferous). The recent recovery of small carbonaceous fossils (SCFs) to the south, in areas that escaped the effects of this deformation, has substantially expanded the known coverage of organic preservation into shallower water depositional settings in this region. Here, we describe additional SCF assemblages from the siliciclastic shelf succession of the Buen Formation (Cambrian Series 2, stages 3–4; c.a. 515 Ma), expanding the previously documented SCF biota. Newly recovered material indicates a rich diversity of non-mineralizing metazoans, chiefly represented by arthropod remains. These include the filtering and grinding elements of a sophisticated crustacean feeding apparatus (the oldest crustacean remains reported to date), alongside an assortment of bradoriid sclerites, including almost complete, 3D valves, which tie together a number of SCFs previously found in isolation. Other metazoan remains include various trilobite cuticles, diverse scalidophoran sclerites, and a range of metazoan fragments of uncertain affinity. This shallower water assemblage differs substantially from the Sirius Passet biota, which is dominated by problematic euarthropod stem-group members and sponges. Although some of these discrepancies are attributable to taphonomic or temporal factors, these lateral variations in taxonomic composition also point to significant palaeoenvironmental and/or palaeoecological controls on early Cambrian metazoan communities. |
format |
Article in Journal/Newspaper |
author |
Wallet, Elise Slater, Ben Willman, Sebastian Peel, John Stuart |
author_facet |
Wallet, Elise Slater, Ben Willman, Sebastian Peel, John Stuart |
author_sort |
Wallet, Elise |
title |
Small carbonaceous fossils (SCFs) from North Greenland : new light on metazoan diversity in early Cambrian shelf environments |
title_short |
Small carbonaceous fossils (SCFs) from North Greenland : new light on metazoan diversity in early Cambrian shelf environments |
title_full |
Small carbonaceous fossils (SCFs) from North Greenland : new light on metazoan diversity in early Cambrian shelf environments |
title_fullStr |
Small carbonaceous fossils (SCFs) from North Greenland : new light on metazoan diversity in early Cambrian shelf environments |
title_full_unstemmed |
Small carbonaceous fossils (SCFs) from North Greenland : new light on metazoan diversity in early Cambrian shelf environments |
title_sort |
small carbonaceous fossils (scfs) from north greenland : new light on metazoan diversity in early cambrian shelf environments |
publisher |
Uppsala universitet, Paleobiologi |
publishDate |
2021 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-433640 https://doi.org/10.1002/spp2.1347 |
long_lat |
ENVELOPE(76.128,76.128,-69.415,-69.415) ENVELOPE(163.250,163.250,-84.133,-84.133) |
geographic |
Greenland Burgess Sirius |
geographic_facet |
Greenland Burgess Sirius |
genre |
Greenland North Greenland |
genre_facet |
Greenland North Greenland |
op_relation |
Papers in Palaeontology, 2056-2799, 2021, 7:3, s. 1403-1433 orcid:0000-0002-5796-0139 orcid:0000-0002-5774-9114 orcid:0000-0002-1434-7131 orcid:0000-0002-1774-7931 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-433640 doi:10.1002/spp2.1347 ISI:000600017800001 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/spp2.1347 |
container_title |
Papers in Palaeontology |
container_volume |
7 |
container_issue |
3 |
container_start_page |
1403 |
op_container_end_page |
1433 |
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1768387854734458880 |