Morphological variability and paleoecology of the Late Ordovician Parastrophina from eastern Canada and the Tarim Basin, Northwest China
Bivariate and multivariate analyses of well-preserved specimens of four species of the Ordovician-Silurian brachiopod genus Parastrophina from eastern North America, the Tarim Basin of Northwest China, and Kazakhstan revealed that the subelliptical shells of Parastrophina hemiplicata from southern O...
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Online Access: | http://ir.nigpas.ac.cn/handle/332004/11804 https://doi.org/10.1016/j.palwor.2014.11.008 |
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/11804 2023-05-15T15:35:27+02:00 Morphological variability and paleoecology of the Late Ordovician Parastrophina from eastern Canada and the Tarim Basin, Northwest China Sproat, Colin D. Jin, Jisuo Zhan, Ren-Bin (詹仁斌) Rudkin, David M. 2015-03-01 http://ir.nigpas.ac.cn/handle/332004/11804 https://doi.org/10.1016/j.palwor.2014.11.008 英语 eng ELSEVIER SCIENCE BV PALAEOWORLD http://ir.nigpas.ac.cn/handle/332004/11804 doi:10.1016/j.palwor.2014.11.008 Parastrophina Pentamerida Brachiopoda Late Ordovician Canada Tarim Southern Ontario Paleogeographic Significance Trenton Group Brachiopods Laurentia Stratigraphy Evolution Lineage Fauna Shelf Paleontology 期刊论文 2015 ftchinacscnigpas https://doi.org/10.1016/j.palwor.2014.11.008 2019-09-27T00:06:01Z Bivariate and multivariate analyses of well-preserved specimens of four species of the Ordovician-Silurian brachiopod genus Parastrophina from eastern North America, the Tarim Basin of Northwest China, and Kazakhstan revealed that the subelliptical shells of Parastrophina hemiplicata from southern Ontario are less globose than the subpentagonal shells of Parastrophina tarimensis n. sp. from the Tarim Basin. Parastrophina minor from Baffin Island has a subelliptical outline, similar to Parastrophina hemiplicata, but is more globose than the specimens from southern Ontario, although this increased globosity was due partly to increased convexity of ventral valve. Three specimens of Parastrophina iliana from Kazakhstan show features between the extreme forms of Parastrophina hemiplicata and Parastrophina tarimensis. These differences may be related to different paleoenvironmental settings - an enlarged dorsal valve in Parastrophina tarimensis would enable the development of larger lophophores at maturity for feeding and gas exchange in the generally low-energy, shallow-water carbonate mound settings in the paleoequatorially located Tarim Basin and Kazakhstan terranes, whereas a wider outline would increase stability on the high-energy, storm-influenced, flat-bottom substrates in the epeiric seas of southern Ontario, which was located in the subtropics during the Late Ordovician. (C) 2014 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved. Report Baffin Island Baffin Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Baffin Island Canada Palaeoworld 24 1-2 160 175 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Parastrophina Pentamerida Brachiopoda Late Ordovician Canada Tarim Southern Ontario Paleogeographic Significance Trenton Group Brachiopods Laurentia Stratigraphy Evolution Lineage Fauna Shelf Paleontology |
spellingShingle |
Parastrophina Pentamerida Brachiopoda Late Ordovician Canada Tarim Southern Ontario Paleogeographic Significance Trenton Group Brachiopods Laurentia Stratigraphy Evolution Lineage Fauna Shelf Paleontology Sproat, Colin D. Jin, Jisuo Zhan, Ren-Bin (詹仁斌) Rudkin, David M. Morphological variability and paleoecology of the Late Ordovician Parastrophina from eastern Canada and the Tarim Basin, Northwest China |
topic_facet |
Parastrophina Pentamerida Brachiopoda Late Ordovician Canada Tarim Southern Ontario Paleogeographic Significance Trenton Group Brachiopods Laurentia Stratigraphy Evolution Lineage Fauna Shelf Paleontology |
description |
Bivariate and multivariate analyses of well-preserved specimens of four species of the Ordovician-Silurian brachiopod genus Parastrophina from eastern North America, the Tarim Basin of Northwest China, and Kazakhstan revealed that the subelliptical shells of Parastrophina hemiplicata from southern Ontario are less globose than the subpentagonal shells of Parastrophina tarimensis n. sp. from the Tarim Basin. Parastrophina minor from Baffin Island has a subelliptical outline, similar to Parastrophina hemiplicata, but is more globose than the specimens from southern Ontario, although this increased globosity was due partly to increased convexity of ventral valve. Three specimens of Parastrophina iliana from Kazakhstan show features between the extreme forms of Parastrophina hemiplicata and Parastrophina tarimensis. These differences may be related to different paleoenvironmental settings - an enlarged dorsal valve in Parastrophina tarimensis would enable the development of larger lophophores at maturity for feeding and gas exchange in the generally low-energy, shallow-water carbonate mound settings in the paleoequatorially located Tarim Basin and Kazakhstan terranes, whereas a wider outline would increase stability on the high-energy, storm-influenced, flat-bottom substrates in the epeiric seas of southern Ontario, which was located in the subtropics during the Late Ordovician. (C) 2014 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved. |
format |
Report |
author |
Sproat, Colin D. Jin, Jisuo Zhan, Ren-Bin (詹仁斌) Rudkin, David M. |
author_facet |
Sproat, Colin D. Jin, Jisuo Zhan, Ren-Bin (詹仁斌) Rudkin, David M. |
author_sort |
Sproat, Colin D. |
title |
Morphological variability and paleoecology of the Late Ordovician Parastrophina from eastern Canada and the Tarim Basin, Northwest China |
title_short |
Morphological variability and paleoecology of the Late Ordovician Parastrophina from eastern Canada and the Tarim Basin, Northwest China |
title_full |
Morphological variability and paleoecology of the Late Ordovician Parastrophina from eastern Canada and the Tarim Basin, Northwest China |
title_fullStr |
Morphological variability and paleoecology of the Late Ordovician Parastrophina from eastern Canada and the Tarim Basin, Northwest China |
title_full_unstemmed |
Morphological variability and paleoecology of the Late Ordovician Parastrophina from eastern Canada and the Tarim Basin, Northwest China |
title_sort |
morphological variability and paleoecology of the late ordovician parastrophina from eastern canada and the tarim basin, northwest china |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2015 |
url |
http://ir.nigpas.ac.cn/handle/332004/11804 https://doi.org/10.1016/j.palwor.2014.11.008 |
geographic |
Baffin Island Canada |
geographic_facet |
Baffin Island Canada |
genre |
Baffin Island Baffin |
genre_facet |
Baffin Island Baffin |
op_relation |
PALAEOWORLD http://ir.nigpas.ac.cn/handle/332004/11804 doi:10.1016/j.palwor.2014.11.008 |
op_doi |
https://doi.org/10.1016/j.palwor.2014.11.008 |
container_title |
Palaeoworld |
container_volume |
24 |
container_issue |
1-2 |
container_start_page |
160 |
op_container_end_page |
175 |
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1766365790721802240 |