Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis
The Llandovery conodont provincialism is reassessed based on a larger dataset than that which was available in 1990. The study interval is divided into two time units, the 'Pre-Telychian' and Telychian. Three quantitative methods are adopted in the biogeographic analysis, including cluster...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Language: | English |
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Online Access: | http://ir.nigpas.ac.cn/handle/332004/14037 https://doi.org/10.1016/j.palaeo.2017.07.023 |
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/14037 2023-05-15T18:19:16+02:00 Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis Chen, Zhongyang (陈中阳) Mannik, Peep Fan, Junxuan (樊隽轩) 2017-11-01 http://ir.nigpas.ac.cn/handle/332004/14037 https://doi.org/10.1016/j.palaeo.2017.07.023 英语 eng ELSEVIER SCIENCE BV PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://ir.nigpas.ac.cn/handle/332004/14037 doi:10.1016/j.palaeo.2017.07.023 Richness Ocean Current Circulation Longitudinal Global Brachiopod Paleobiogeography Anticosti Island Ordovician Biostratigraphy Stratigraphy Spain Mountains America Turkey Alaska Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary 期刊论文 2017 ftchinacscnigpas https://doi.org/10.1016/j.palaeo.2017.07.023 2019-10-25T00:03:03Z The Llandovery conodont provincialism is reassessed based on a larger dataset than that which was available in 1990. The study interval is divided into two time units, the 'Pre-Telychian' and Telychian. Three quantitative methods are adopted in the biogeographic analysis, including cluster analysis, non-metric multidimensional scaling, and minimum spanning tree. In the 'Pre-Telychian' interval, four provinces can be recognized, i.e., the North American-Baltic-Siberian, Timan-Severnaya Zemlya, Australian, and Yangtze provinces. However, only three provinces can be recognized in the subsequent Telychian interval. The Timan-Sevemaya Zemlya Province existed also in this time interval, but Austria and Australia are combined with the 'Pre-Telychian' North American-Baltic Siberian Province and form a new province, theBaltic-Austrian-Siberian-Australian-North American Province (BASAN Province), while Tibet and the 'Pre-Telychian' Yangtze Province form the Chinese Province. The conodont richness shows a latitudinal or temperature-dependent gradient. The conodont fauna was most diverse in the lower latitudes (tropical, arid and partly warm temperate climatic zones). However, the provincialism of the Llandovery conodont faunas demonstrates a longitudinal pattern, which cannot be the result of any latitudinal factors, such as temperature, but could be controlled by longitudinal factors, probably by the circulation of ocean currents. The circulation pattern can also explain the formation of the Telychian BASAN Province, which probably resulted from the Rheic and Panthalassa Ocean gyres. According to the conodont provincialism and the distribution of taxa, five types of conodont species can be recognized, including Limitedly distributed species, BASAN species, Equatorial species, Shallow-Sea Realm species, and Cosmopolitan species. The conodont fauna showed a significant change in provincialism from the Ordovician to the Silurian, i.e., from a latitudinal pattern to a longitudinal pattern. The Hirnantian glaciation may be one of the controlling factors which resulted in the reorganization of the conodont faunas and the change of their living habits and ecological requirement. (C) 2017 Elsevier B.V. All rights reserved. Report Severnaya Zemlya Alaska Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Palaeogeography, Palaeoclimatology, Palaeoecology 485 661 672 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Richness Ocean Current Circulation Longitudinal Global Brachiopod Paleobiogeography Anticosti Island Ordovician Biostratigraphy Stratigraphy Spain Mountains America Turkey Alaska Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary |
spellingShingle |
Richness Ocean Current Circulation Longitudinal Global Brachiopod Paleobiogeography Anticosti Island Ordovician Biostratigraphy Stratigraphy Spain Mountains America Turkey Alaska Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary Chen, Zhongyang (陈中阳) Mannik, Peep Fan, Junxuan (樊隽轩) Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis |
topic_facet |
Richness Ocean Current Circulation Longitudinal Global Brachiopod Paleobiogeography Anticosti Island Ordovician Biostratigraphy Stratigraphy Spain Mountains America Turkey Alaska Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary |
description |
The Llandovery conodont provincialism is reassessed based on a larger dataset than that which was available in 1990. The study interval is divided into two time units, the 'Pre-Telychian' and Telychian. Three quantitative methods are adopted in the biogeographic analysis, including cluster analysis, non-metric multidimensional scaling, and minimum spanning tree. In the 'Pre-Telychian' interval, four provinces can be recognized, i.e., the North American-Baltic-Siberian, Timan-Severnaya Zemlya, Australian, and Yangtze provinces. However, only three provinces can be recognized in the subsequent Telychian interval. The Timan-Sevemaya Zemlya Province existed also in this time interval, but Austria and Australia are combined with the 'Pre-Telychian' North American-Baltic Siberian Province and form a new province, theBaltic-Austrian-Siberian-Australian-North American Province (BASAN Province), while Tibet and the 'Pre-Telychian' Yangtze Province form the Chinese Province. The conodont richness shows a latitudinal or temperature-dependent gradient. The conodont fauna was most diverse in the lower latitudes (tropical, arid and partly warm temperate climatic zones). However, the provincialism of the Llandovery conodont faunas demonstrates a longitudinal pattern, which cannot be the result of any latitudinal factors, such as temperature, but could be controlled by longitudinal factors, probably by the circulation of ocean currents. The circulation pattern can also explain the formation of the Telychian BASAN Province, which probably resulted from the Rheic and Panthalassa Ocean gyres. According to the conodont provincialism and the distribution of taxa, five types of conodont species can be recognized, including Limitedly distributed species, BASAN species, Equatorial species, Shallow-Sea Realm species, and Cosmopolitan species. The conodont fauna showed a significant change in provincialism from the Ordovician to the Silurian, i.e., from a latitudinal pattern to a longitudinal pattern. The Hirnantian glaciation may be one of the controlling factors which resulted in the reorganization of the conodont faunas and the change of their living habits and ecological requirement. (C) 2017 Elsevier B.V. All rights reserved. |
format |
Report |
author |
Chen, Zhongyang (陈中阳) Mannik, Peep Fan, Junxuan (樊隽轩) |
author_facet |
Chen, Zhongyang (陈中阳) Mannik, Peep Fan, Junxuan (樊隽轩) |
author_sort |
Chen, Zhongyang (陈中阳) |
title |
Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis |
title_short |
Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis |
title_full |
Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis |
title_fullStr |
Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis |
title_full_unstemmed |
Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis |
title_sort |
llandovery (silurian) conodont provincialism: an update based on quantitative analysis |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2017 |
url |
http://ir.nigpas.ac.cn/handle/332004/14037 https://doi.org/10.1016/j.palaeo.2017.07.023 |
long_lat |
ENVELOPE(98.000,98.000,79.500,79.500) |
geographic |
Severnaya Zemlya |
geographic_facet |
Severnaya Zemlya |
genre |
Severnaya Zemlya Alaska |
genre_facet |
Severnaya Zemlya Alaska |
op_relation |
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://ir.nigpas.ac.cn/handle/332004/14037 doi:10.1016/j.palaeo.2017.07.023 |
op_doi |
https://doi.org/10.1016/j.palaeo.2017.07.023 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
485 |
container_start_page |
661 |
op_container_end_page |
672 |
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1766196287902842880 |