Data from: Lycopsid megaspores from the Upper Triassic of Svalbard and their relationship to the floras and palaeoenvironments of northern Pangaea
Triassic megaspore assemblages from Svalbard, Arctic Norway, are described for the first time based on the analysis of the Upper Triassic (Carnian–Norian/Rhaetian) Kapp Toscana Group on the island of Hopen. Two megaspore zones are described: the late Carnian ‘Dijkstraisporites beutleri Zone’ (undiff...
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2019
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Online Access: | https://doi.org/10.5061/dryad.1mn51s6 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::19f7e64a2983845606a991fddbb2ee59 |
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openpolar |
institution |
Open Polar |
collection |
Unknown |
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fttriple |
language |
unknown |
topic |
Life sciences medicine and health care Kutsevella haplophragmoides Darwinulina Psammosphaera Kutsevella Triassic Horstisporites Ammodiscus peruvianus megaspores Carnian Cytherella plattensis Asciocythere Ammodiscus clavata Vemeuilinoides Aratrisporites macrocavatus Rhaetian Gaudryina adoxa Glomospirella Lagenammina inanis Nathorstisporites hopliticus Verneuilinoides kirillae Ogmoconcha owthorpensis Ammodiscus incertus micro-biofacies Trochammina eoparva Ammodiscus yonsnabensis Calamospora rhaetica Ammoglobigerina Glomospira irregularis Recurvoides Lituotuba perplexa Hyperammina Palynology Echitriletes prerussus Aratrisporites fimbriatus Glomospira gordialis Saccammina Thurammina Aratrisporites granulatus Aratrisporites fischeri Spiroplectammina Dentalina Aratrisporites laevigatus Trileites Echitriletes Aratrisporites scabratus Norian |
spellingShingle |
Life sciences medicine and health care Kutsevella haplophragmoides Darwinulina Psammosphaera Kutsevella Triassic Horstisporites Ammodiscus peruvianus megaspores Carnian Cytherella plattensis Asciocythere Ammodiscus clavata Vemeuilinoides Aratrisporites macrocavatus Rhaetian Gaudryina adoxa Glomospirella Lagenammina inanis Nathorstisporites hopliticus Verneuilinoides kirillae Ogmoconcha owthorpensis Ammodiscus incertus micro-biofacies Trochammina eoparva Ammodiscus yonsnabensis Calamospora rhaetica Ammoglobigerina Glomospira irregularis Recurvoides Lituotuba perplexa Hyperammina Palynology Echitriletes prerussus Aratrisporites fimbriatus Glomospira gordialis Saccammina Thurammina Aratrisporites granulatus Aratrisporites fischeri Spiroplectammina Dentalina Aratrisporites laevigatus Trileites Echitriletes Aratrisporites scabratus Norian Paterson, Niall Morris, Peter Mangerud, Gunn Data from: Lycopsid megaspores from the Upper Triassic of Svalbard and their relationship to the floras and palaeoenvironments of northern Pangaea |
topic_facet |
Life sciences medicine and health care Kutsevella haplophragmoides Darwinulina Psammosphaera Kutsevella Triassic Horstisporites Ammodiscus peruvianus megaspores Carnian Cytherella plattensis Asciocythere Ammodiscus clavata Vemeuilinoides Aratrisporites macrocavatus Rhaetian Gaudryina adoxa Glomospirella Lagenammina inanis Nathorstisporites hopliticus Verneuilinoides kirillae Ogmoconcha owthorpensis Ammodiscus incertus micro-biofacies Trochammina eoparva Ammodiscus yonsnabensis Calamospora rhaetica Ammoglobigerina Glomospira irregularis Recurvoides Lituotuba perplexa Hyperammina Palynology Echitriletes prerussus Aratrisporites fimbriatus Glomospira gordialis Saccammina Thurammina Aratrisporites granulatus Aratrisporites fischeri Spiroplectammina Dentalina Aratrisporites laevigatus Trileites Echitriletes Aratrisporites scabratus Norian |
description |
Triassic megaspore assemblages from Svalbard, Arctic Norway, are described for the first time based on the analysis of the Upper Triassic (Carnian–Norian/Rhaetian) Kapp Toscana Group on the island of Hopen. Two megaspore zones are described: the late Carnian ‘Dijkstraisporites beutleri Zone’ (undifferentiated De Geerdalen Formation), and the Norian/Rhaetian ‘D. beutleri – Verrutriletes preutilis Zone’ (Svenskøya Formation). Megaspores are attributed to heterosporous lycopsids, and likely correspond to the microspore Aratrisporites, which was observed in palynological preparations. Megaspore occurrence was highest in delta-plain and associated with lake-mire deposits. However, their close association with marine microfossils suggests episodic marine influence, and is consistent with previous interpretations that some Triassic lycopsids occupied marginal marine habitats. The absence of megaspores in the overlying Hopen Member and Flatsalen Formation is likely related to a marine transgression during the early Norian, as indicated by the recovery of low diversity assemblages of agglutinated foraminifera. The transition to ostracod-dominated microfaunas in the middle part of the formation is consistent with a regionally extensive maximum flooding surface, prior to a return to megaspore-dominated assemblages in the fluvio-deltaic deposits of the Svenskøya Formation. Despite the abundance of their mega- and microspores, lycopsid fossils are almost entirely absent within palaeobotanical collections from the island, which we ascribe to their herbaceous habit and consequent low preservation potential. The results of this study show lycopsids to be an important component of the local ecosystem and thus contribute to a more complete understanding of the Late Triassic floras of northern-most Pangaea. Supplement 1. Binnedalen range chartMicropalaeontological and micro-biofacies distribution chart for the Binnedalen section, Hopen. Microfossil occurrences marked with an asterisk were previously reported in Paterson et al. ... |
format |
Dataset |
author |
Paterson, Niall Morris, Peter Mangerud, Gunn |
author_facet |
Paterson, Niall Morris, Peter Mangerud, Gunn |
author_sort |
Paterson, Niall |
title |
Data from: Lycopsid megaspores from the Upper Triassic of Svalbard and their relationship to the floras and palaeoenvironments of northern Pangaea |
title_short |
Data from: Lycopsid megaspores from the Upper Triassic of Svalbard and their relationship to the floras and palaeoenvironments of northern Pangaea |
title_full |
Data from: Lycopsid megaspores from the Upper Triassic of Svalbard and their relationship to the floras and palaeoenvironments of northern Pangaea |
title_fullStr |
Data from: Lycopsid megaspores from the Upper Triassic of Svalbard and their relationship to the floras and palaeoenvironments of northern Pangaea |
title_full_unstemmed |
Data from: Lycopsid megaspores from the Upper Triassic of Svalbard and their relationship to the floras and palaeoenvironments of northern Pangaea |
title_sort |
data from: lycopsid megaspores from the upper triassic of svalbard and their relationship to the floras and palaeoenvironments of northern pangaea |
publishDate |
2019 |
url |
https://doi.org/10.5061/dryad.1mn51s6 |
long_lat |
ENVELOPE(-154.600,-154.600,-78.033,-78.033) ENVELOPE(9.279,9.279,63.379,63.379) ENVELOPE(16.368,16.368,78.296,78.296) ENVELOPE(15.075,15.075,77.553,77.553) ENVELOPE(25.500,25.500,76.700,76.700) |
geographic |
Arctic Svalbard Norway Paterson Hopen De Geerdalen Kapp Toscana Flatsalen |
geographic_facet |
Arctic Svalbard Norway Paterson Hopen De Geerdalen Kapp Toscana Flatsalen |
genre |
Arctic Foraminifera* Hopen Svalbard Svenskøya Hopen |
genre_facet |
Arctic Foraminifera* Hopen Svalbard Svenskøya Hopen |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:118045 oai:easy.dans.knaw.nl:easy-dataset:118045 10.5061/dryad.1mn51s6 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 |
op_relation |
http://dx.doi.org/10.5061/dryad.1mn51s6 https://dx.doi.org/10.5061/dryad.1mn51s6 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.1mn51s6 |
_version_ |
1766349037490929664 |
spelling |
fttriple:oai:gotriple.eu:50|dedup_wf_001::19f7e64a2983845606a991fddbb2ee59 2023-05-15T15:18:52+02:00 Data from: Lycopsid megaspores from the Upper Triassic of Svalbard and their relationship to the floras and palaeoenvironments of northern Pangaea Paterson, Niall Morris, Peter Mangerud, Gunn 2019-11-30 https://doi.org/10.5061/dryad.1mn51s6 undefined unknown http://dx.doi.org/10.5061/dryad.1mn51s6 https://dx.doi.org/10.5061/dryad.1mn51s6 lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:118045 oai:easy.dans.knaw.nl:easy-dataset:118045 10.5061/dryad.1mn51s6 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 Life sciences medicine and health care Kutsevella haplophragmoides Darwinulina Psammosphaera Kutsevella Triassic Horstisporites Ammodiscus peruvianus megaspores Carnian Cytherella plattensis Asciocythere Ammodiscus clavata Vemeuilinoides Aratrisporites macrocavatus Rhaetian Gaudryina adoxa Glomospirella Lagenammina inanis Nathorstisporites hopliticus Verneuilinoides kirillae Ogmoconcha owthorpensis Ammodiscus incertus micro-biofacies Trochammina eoparva Ammodiscus yonsnabensis Calamospora rhaetica Ammoglobigerina Glomospira irregularis Recurvoides Lituotuba perplexa Hyperammina Palynology Echitriletes prerussus Aratrisporites fimbriatus Glomospira gordialis Saccammina Thurammina Aratrisporites granulatus Aratrisporites fischeri Spiroplectammina Dentalina Aratrisporites laevigatus Trileites Echitriletes Aratrisporites scabratus Norian Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2019 fttriple https://doi.org/10.5061/dryad.1mn51s6 2023-01-22T16:51:09Z Triassic megaspore assemblages from Svalbard, Arctic Norway, are described for the first time based on the analysis of the Upper Triassic (Carnian–Norian/Rhaetian) Kapp Toscana Group on the island of Hopen. Two megaspore zones are described: the late Carnian ‘Dijkstraisporites beutleri Zone’ (undifferentiated De Geerdalen Formation), and the Norian/Rhaetian ‘D. beutleri – Verrutriletes preutilis Zone’ (Svenskøya Formation). Megaspores are attributed to heterosporous lycopsids, and likely correspond to the microspore Aratrisporites, which was observed in palynological preparations. Megaspore occurrence was highest in delta-plain and associated with lake-mire deposits. However, their close association with marine microfossils suggests episodic marine influence, and is consistent with previous interpretations that some Triassic lycopsids occupied marginal marine habitats. The absence of megaspores in the overlying Hopen Member and Flatsalen Formation is likely related to a marine transgression during the early Norian, as indicated by the recovery of low diversity assemblages of agglutinated foraminifera. The transition to ostracod-dominated microfaunas in the middle part of the formation is consistent with a regionally extensive maximum flooding surface, prior to a return to megaspore-dominated assemblages in the fluvio-deltaic deposits of the Svenskøya Formation. Despite the abundance of their mega- and microspores, lycopsid fossils are almost entirely absent within palaeobotanical collections from the island, which we ascribe to their herbaceous habit and consequent low preservation potential. The results of this study show lycopsids to be an important component of the local ecosystem and thus contribute to a more complete understanding of the Late Triassic floras of northern-most Pangaea. Supplement 1. Binnedalen range chartMicropalaeontological and micro-biofacies distribution chart for the Binnedalen section, Hopen. Microfossil occurrences marked with an asterisk were previously reported in Paterson et al. ... Dataset Arctic Foraminifera* Hopen Svalbard Svenskøya Hopen Unknown Arctic Svalbard Norway Paterson ENVELOPE(-154.600,-154.600,-78.033,-78.033) Hopen ENVELOPE(9.279,9.279,63.379,63.379) De Geerdalen ENVELOPE(16.368,16.368,78.296,78.296) Kapp Toscana ENVELOPE(15.075,15.075,77.553,77.553) Flatsalen ENVELOPE(25.500,25.500,76.700,76.700) |