Biota and palaeoenvironment of a high middle-latitude Late Triassic peat-forming ecosystem from Hopen, Svalbard archipelago
International audience A siliceous permineralized peat block recovered from Hopen in the Svalbard archipelago hosts a low-diversity Late Triassic flora dominated by autochthonous roots and stems of bennettitaleans and lycophytes, and parautochthonous leaves, sporangia, spores and pollen from a small...
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Online Access: | https://univ-angers.hal.science/hal-02872789 https://doi.org/10.1144/SP434.4 |
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ftunivangershal:oai:HAL:hal-02872789v1 2023-11-12T04:18:16+01:00 Biota and palaeoenvironment of a high middle-latitude Late Triassic peat-forming ecosystem from Hopen, Svalbard archipelago Mcloughlin, S. Strullu-Derrien, Christine Laboratoire de Planétologie et Géodynamique - Angers (LPG-ANGERS) Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2015 https://univ-angers.hal.science/hal-02872789 https://doi.org/10.1144/SP434.4 en eng HAL CCSD Lyell Collection info:eu-repo/semantics/altIdentifier/doi/10.1144/SP434.4 hal-02872789 https://univ-angers.hal.science/hal-02872789 doi:10.1144/SP434.4 OKINA: ua18616 ISSN: 0305-8719 The Geology Society of London https://univ-angers.hal.science/hal-02872789 The Geology Society of London, 2015, 434 (1), pp.87-112. ⟨10.1144/SP434.4⟩ http://sp.lyellcollection.org/content/434/1/87 [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2015 ftunivangershal https://doi.org/10.1144/SP434.4 2023-10-25T16:18:44Z International audience A siliceous permineralized peat block recovered from Hopen in the Svalbard archipelago hosts a low-diversity Late Triassic flora dominated by autochthonous roots and stems of bennettitaleans and lycophytes, and parautochthonous leaves, sporangia, spores and pollen from a small range of pteridophytes and gymnosperms. Some parenchymatous bennettitalean root cells show interactions with chytrid fungi and bacteria; the remains of other fungi and fungi-like organisms are dispersed within the peat's detrital matrix. Cavities excavated through some roots and compacted detritus contain abundant coprolites probably derived from sapro-xylophagous oribatid mites, although no body fossils have yet been identified. Sparse larger coprolites containing leaf fragments attest to the presence of invertebrate folivores in the ancient ecosystem. The low-diversity flora, relatively few trophic levels and simple nutritional web, together with sedimentological aspects of the host formation and the peat structure, collectively favour accumulation of the organic mass as a fibric (root-dominated) peat within a temperate (high middle-latitude), well-aerated mire. Article in Journal/Newspaper Hopen Svalbard Hopen Portail des publications scientifiques de l’Université d’Angers (HAL) Svalbard Svalbard Archipelago Hopen ENVELOPE(9.279,9.279,63.379,63.379) Geological Society, London, Special Publications 434 1 87 112 |
institution |
Open Polar |
collection |
Portail des publications scientifiques de l’Université d’Angers (HAL) |
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ftunivangershal |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Mcloughlin, S. Strullu-Derrien, Christine Biota and palaeoenvironment of a high middle-latitude Late Triassic peat-forming ecosystem from Hopen, Svalbard archipelago |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience A siliceous permineralized peat block recovered from Hopen in the Svalbard archipelago hosts a low-diversity Late Triassic flora dominated by autochthonous roots and stems of bennettitaleans and lycophytes, and parautochthonous leaves, sporangia, spores and pollen from a small range of pteridophytes and gymnosperms. Some parenchymatous bennettitalean root cells show interactions with chytrid fungi and bacteria; the remains of other fungi and fungi-like organisms are dispersed within the peat's detrital matrix. Cavities excavated through some roots and compacted detritus contain abundant coprolites probably derived from sapro-xylophagous oribatid mites, although no body fossils have yet been identified. Sparse larger coprolites containing leaf fragments attest to the presence of invertebrate folivores in the ancient ecosystem. The low-diversity flora, relatively few trophic levels and simple nutritional web, together with sedimentological aspects of the host formation and the peat structure, collectively favour accumulation of the organic mass as a fibric (root-dominated) peat within a temperate (high middle-latitude), well-aerated mire. |
author2 |
Laboratoire de Planétologie et Géodynamique - Angers (LPG-ANGERS) Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Mcloughlin, S. Strullu-Derrien, Christine |
author_facet |
Mcloughlin, S. Strullu-Derrien, Christine |
author_sort |
Mcloughlin, S. |
title |
Biota and palaeoenvironment of a high middle-latitude Late Triassic peat-forming ecosystem from Hopen, Svalbard archipelago |
title_short |
Biota and palaeoenvironment of a high middle-latitude Late Triassic peat-forming ecosystem from Hopen, Svalbard archipelago |
title_full |
Biota and palaeoenvironment of a high middle-latitude Late Triassic peat-forming ecosystem from Hopen, Svalbard archipelago |
title_fullStr |
Biota and palaeoenvironment of a high middle-latitude Late Triassic peat-forming ecosystem from Hopen, Svalbard archipelago |
title_full_unstemmed |
Biota and palaeoenvironment of a high middle-latitude Late Triassic peat-forming ecosystem from Hopen, Svalbard archipelago |
title_sort |
biota and palaeoenvironment of a high middle-latitude late triassic peat-forming ecosystem from hopen, svalbard archipelago |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://univ-angers.hal.science/hal-02872789 https://doi.org/10.1144/SP434.4 |
long_lat |
ENVELOPE(9.279,9.279,63.379,63.379) |
geographic |
Svalbard Svalbard Archipelago Hopen |
geographic_facet |
Svalbard Svalbard Archipelago Hopen |
genre |
Hopen Svalbard Hopen |
genre_facet |
Hopen Svalbard Hopen |
op_source |
ISSN: 0305-8719 The Geology Society of London https://univ-angers.hal.science/hal-02872789 The Geology Society of London, 2015, 434 (1), pp.87-112. ⟨10.1144/SP434.4⟩ http://sp.lyellcollection.org/content/434/1/87 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1144/SP434.4 hal-02872789 https://univ-angers.hal.science/hal-02872789 doi:10.1144/SP434.4 OKINA: ua18616 |
op_doi |
https://doi.org/10.1144/SP434.4 |
container_title |
Geological Society, London, Special Publications |
container_volume |
434 |
container_issue |
1 |
container_start_page |
87 |
op_container_end_page |
112 |
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1782334917295734784 |