Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway
New palynological analysis of samples from 13 offshore wells on the Canadian Margin and six wells on the West Greenland Margin has led to a new event biostratigraphic framework for Cretaceous–Cenozoic strata of the Labrador Sea – Davis Strait – Baffin Bay (Labrador–Baffin Seaway) region. This framew...
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Geological Survey of Denmark and Greenland
2016
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ftdoajarticles:oai:doaj.org/article:b19d619ea0dc4cb583972da721b78d3e 2023-05-15T15:35:05+02:00 Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway Robert A. Fensome Henrik Nøhr-Hansen Graham L. Williams 2016-12-01T00:00:00Z https://doaj.org/article/b19d619ea0dc4cb583972da721b78d3e EN eng Geological Survey of Denmark and Greenland http://www.geus.dk/DK/publications/geol-survey-dk-gl-bull/36/Documents/nr36_p1-143.pdf https://doaj.org/toc/1604-8156 https://doaj.org/toc/1904-4666 1604-8156 1904-4666 https://doaj.org/article/b19d619ea0dc4cb583972da721b78d3e Geological Survey of Denmark and Greenland Bulletin, Vol 36, Pp 01-143 (2016) Biostratigraphy Cretaceous Cenozoic dinocysts systematics Baffin Margin Labrador Margin Mesozoic Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 article 2016 ftdoajarticles 2022-12-31T14:18:49Z New palynological analysis of samples from 13 offshore wells on the Canadian Margin and six wells on the West Greenland Margin has led to a new event biostratigraphic framework for Cretaceous–Cenozoic strata of the Labrador Sea – Davis Strait – Baffin Bay (Labrador–Baffin Seaway) region. This framework is based on about 150 dinoflagellate cyst taxa and 30 acritarch, algal, fungal and plant microfossil (mostly miospore) taxa. In the systematics we include three new genera of dinocysts (Scalenodinium, Simplicidinium and Taurodinium), 16 new species of dinocysts (Chiropteridium gilbertii, Chytroeisphaeridia hadra, Cleistosphaeridium elegantulum, Cleistosphaeridium palmatum, Dapsilidinium pseudoinsertum, Deflandrea borealis, Evittosphaerula? foraminosa, Ginginodinium? flexidentatum, Hystrichosphaeridium quadratum, Hystrichostrogylon digitus, Impletosphaeridium apodastum, Scalenodinium scalenum, Surculosphaeridium convocatum, Talladinium pellis, Taurodinium granulatum and Trithyrodinium? conservatum), four emendations of dinocyst genera (Alterbidinium, Chatangiella, Chiropteridium and Surculosphaeridium), six new combinations for dinocyst species (Alterbidinium biaperturum, Deflandrea majae, Kleithriasphaeridium mantellii,Simplicidinium insolitum, Spongodinium grossum, Spongodinium obscurum), one new acritarch species (Fromea quadrangularis), one new miospore species (Baculatisporites crenulatus) and one new combination for miospores (Tiliaepollenites crassipites). Most of the taxa included provide age information, almost exclusively last occurrences (range ‘tops’), but some are useful mainly for environmental interpretations. Collectively, they provide a powerful tool for helping to establish the geological history of the Labrador–Baffin Seaway. Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Davis Strait Greenland Labrador Sea Geological Survey of Denmark and Greenland Bulletin Directory of Open Access Journals: DOAJ Articles Baffin Bay Greenland |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Biostratigraphy Cretaceous Cenozoic dinocysts systematics Baffin Margin Labrador Margin Mesozoic Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Biostratigraphy Cretaceous Cenozoic dinocysts systematics Baffin Margin Labrador Margin Mesozoic Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 Robert A. Fensome Henrik Nøhr-Hansen Graham L. Williams Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway |
topic_facet |
Biostratigraphy Cretaceous Cenozoic dinocysts systematics Baffin Margin Labrador Margin Mesozoic Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
description |
New palynological analysis of samples from 13 offshore wells on the Canadian Margin and six wells on the West Greenland Margin has led to a new event biostratigraphic framework for Cretaceous–Cenozoic strata of the Labrador Sea – Davis Strait – Baffin Bay (Labrador–Baffin Seaway) region. This framework is based on about 150 dinoflagellate cyst taxa and 30 acritarch, algal, fungal and plant microfossil (mostly miospore) taxa. In the systematics we include three new genera of dinocysts (Scalenodinium, Simplicidinium and Taurodinium), 16 new species of dinocysts (Chiropteridium gilbertii, Chytroeisphaeridia hadra, Cleistosphaeridium elegantulum, Cleistosphaeridium palmatum, Dapsilidinium pseudoinsertum, Deflandrea borealis, Evittosphaerula? foraminosa, Ginginodinium? flexidentatum, Hystrichosphaeridium quadratum, Hystrichostrogylon digitus, Impletosphaeridium apodastum, Scalenodinium scalenum, Surculosphaeridium convocatum, Talladinium pellis, Taurodinium granulatum and Trithyrodinium? conservatum), four emendations of dinocyst genera (Alterbidinium, Chatangiella, Chiropteridium and Surculosphaeridium), six new combinations for dinocyst species (Alterbidinium biaperturum, Deflandrea majae, Kleithriasphaeridium mantellii,Simplicidinium insolitum, Spongodinium grossum, Spongodinium obscurum), one new acritarch species (Fromea quadrangularis), one new miospore species (Baculatisporites crenulatus) and one new combination for miospores (Tiliaepollenites crassipites). Most of the taxa included provide age information, almost exclusively last occurrences (range ‘tops’), but some are useful mainly for environmental interpretations. Collectively, they provide a powerful tool for helping to establish the geological history of the Labrador–Baffin Seaway. |
format |
Article in Journal/Newspaper |
author |
Robert A. Fensome Henrik Nøhr-Hansen Graham L. Williams |
author_facet |
Robert A. Fensome Henrik Nøhr-Hansen Graham L. Williams |
author_sort |
Robert A. Fensome |
title |
Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway |
title_short |
Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway |
title_full |
Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway |
title_fullStr |
Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway |
title_full_unstemmed |
Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway |
title_sort |
cretaceous and cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the labrador–baffin seaway |
publisher |
Geological Survey of Denmark and Greenland |
publishDate |
2016 |
url |
https://doaj.org/article/b19d619ea0dc4cb583972da721b78d3e |
geographic |
Baffin Bay Greenland |
geographic_facet |
Baffin Bay Greenland |
genre |
Baffin Bay Baffin Bay Baffin Davis Strait Greenland Labrador Sea Geological Survey of Denmark and Greenland Bulletin |
genre_facet |
Baffin Bay Baffin Bay Baffin Davis Strait Greenland Labrador Sea Geological Survey of Denmark and Greenland Bulletin |
op_source |
Geological Survey of Denmark and Greenland Bulletin, Vol 36, Pp 01-143 (2016) |
op_relation |
http://www.geus.dk/DK/publications/geol-survey-dk-gl-bull/36/Documents/nr36_p1-143.pdf https://doaj.org/toc/1604-8156 https://doaj.org/toc/1904-4666 1604-8156 1904-4666 https://doaj.org/article/b19d619ea0dc4cb583972da721b78d3e |
_version_ |
1766365390744584192 |