The Sirius Passet Lagerstätte of North Greenland: a remote window on the Cambrian Explosion
The lower Cambrian Lagerstätte of Sirius Passet, Nansen Land, North Greenland, is one of the oldest of the Phanerozoic, exceptionally preserved biotas. The Lagerstätte evidences the escalation of numbers of new body plans and life modes that formed the basis for a modern, functionally tiered ecosyst...
| Hlavní autoři: | , , , , , , |
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| Médium: | Journal article |
| Jazyk: | English |
| Vydáno: |
Geological Society of London
2019
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| _version_ | 1826290888129642496 |
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| author | Harper, D Hammarlund, E Topper, T Nielsen, A Rasmussen, J Park, T Smith, M |
| author_facet | Harper, D Hammarlund, E Topper, T Nielsen, A Rasmussen, J Park, T Smith, M |
| author_sort | Harper, D |
| collection | OXFORD |
| description | The lower Cambrian Lagerstätte of Sirius Passet, Nansen Land, North Greenland, is one of the oldest of the Phanerozoic, exceptionally preserved biotas. The Lagerstätte evidences the escalation of numbers of new body plans and life modes that formed the basis for a modern, functionally tiered ecosystem. The fauna is dominated by predators – infaunal, benthic and pelagic – and the presence of abundant nekton, including large sweep-net feeders, suggests an ecosystem rich in nutrients. Recent discoveries have helped reconstruct digestive systems and their contents; muscle fibres; and visual and nervous systems, for a number of taxa. New collections have confirmed the complex combination of taphonomic pathways associated with the biota and its potentially substantial biodiversity. These complex animal-based communities within the Buen Formation were associated with microbial matgrounds, now preserved in black mudstones deposited below storm-wave base that provide insight to the shift from late Neoproterozoic (Ediacaran) to Cambrian substrates and communities. Moreover, the encasing sediment holds important data on the palaeoenvironment and the water-column chemistry, suggesting that these animal-based communities developed in conditions with very low oxygen concentrations. |
| first_indexed | 2024-03-07T02:51:05Z |
| format | Journal article |
| id | oxford-uuid:adb2c94e-1dec-492a-8d8d-177b1df5ec8b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:51:05Z |
| publishDate | 2019 |
| publisher | Geological Society of London |
| record_format | dspace |
| spelling | oxford-uuid:adb2c94e-1dec-492a-8d8d-177b1df5ec8b2022-03-27T03:37:33ZThe Sirius Passet Lagerstätte of North Greenland: a remote window on the Cambrian ExplosionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:adb2c94e-1dec-492a-8d8d-177b1df5ec8bEnglishSymplectic Elements at OxfordGeological Society of London2019Harper, DHammarlund, ETopper, TNielsen, ARasmussen, JPark, TSmith, MThe lower Cambrian Lagerstätte of Sirius Passet, Nansen Land, North Greenland, is one of the oldest of the Phanerozoic, exceptionally preserved biotas. The Lagerstätte evidences the escalation of numbers of new body plans and life modes that formed the basis for a modern, functionally tiered ecosystem. The fauna is dominated by predators – infaunal, benthic and pelagic – and the presence of abundant nekton, including large sweep-net feeders, suggests an ecosystem rich in nutrients. Recent discoveries have helped reconstruct digestive systems and their contents; muscle fibres; and visual and nervous systems, for a number of taxa. New collections have confirmed the complex combination of taphonomic pathways associated with the biota and its potentially substantial biodiversity. These complex animal-based communities within the Buen Formation were associated with microbial matgrounds, now preserved in black mudstones deposited below storm-wave base that provide insight to the shift from late Neoproterozoic (Ediacaran) to Cambrian substrates and communities. Moreover, the encasing sediment holds important data on the palaeoenvironment and the water-column chemistry, suggesting that these animal-based communities developed in conditions with very low oxygen concentrations. |
| spellingShingle | Harper, D Hammarlund, E Topper, T Nielsen, A Rasmussen, J Park, T Smith, M The Sirius Passet Lagerstätte of North Greenland: a remote window on the Cambrian Explosion |
| title | The Sirius Passet Lagerstätte of North Greenland: a remote window on the Cambrian Explosion |
| title_full | The Sirius Passet Lagerstätte of North Greenland: a remote window on the Cambrian Explosion |
| title_fullStr | The Sirius Passet Lagerstätte of North Greenland: a remote window on the Cambrian Explosion |
| title_full_unstemmed | The Sirius Passet Lagerstätte of North Greenland: a remote window on the Cambrian Explosion |
| title_short | The Sirius Passet Lagerstätte of North Greenland: a remote window on the Cambrian Explosion |
| title_sort | sirius passet lagerstatte of north greenland a remote window on the cambrian explosion |
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