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...
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ftzenodo:oai:zenodo.org:4993922 2023-05-15T15:19:05+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 2019-02-15 https://zenodo.org/record/4993922 https://doi.org/10.5061/dryad.1mn51s6 unknown doi:10.1002/spp2.1251 https://zenodo.org/communities/dryad https://zenodo.org/record/4993922 https://doi.org/10.5061/dryad.1mn51s6 oai:zenodo.org:4993922 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode 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 Verrutriletes utilis Nodulina liasica Caudammina Trochammina info:eu-repo/semantics/other dataset 2019 ftzenodo https://doi.org/10.5061/dryad.1mn51s610.1002/spp2.1251 2023-03-10T21:47:22Z 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 Zenodo 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) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
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 Verrutriletes utilis Nodulina liasica Caudammina Trochammina |
spellingShingle |
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 Verrutriletes utilis Nodulina liasica Caudammina Trochammina 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 |
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 Verrutriletes utilis Nodulina liasica Caudammina Trochammina |
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://zenodo.org/record/4993922 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_relation |
doi:10.1002/spp2.1251 https://zenodo.org/communities/dryad https://zenodo.org/record/4993922 https://doi.org/10.5061/dryad.1mn51s6 oai:zenodo.org:4993922 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.1mn51s610.1002/spp2.1251 |
_version_ |
1766349269209448448 |