Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland

An antagonistic view of the relationship between microbialites and metazoans has long been inferred, in part because of the large scale anticorrelation of these two groups through geologic time. The nexus of this relationship occurs in the Early Paleozoic Era: stromatolites declined in abundance as...

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Published in:Palaeogeography, Palaeoclimatology, Palaeoecology
Main Authors: Pruss, Sara, Knoll, Andrew
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier BV 2017
Subjects:
Online Access:http://nrs.harvard.edu/urn-3:HUL.InstRepos:41291562
https://doi.org/10.1016/j.palaeo.2017.08.007
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spelling ftharvardudash:oai:dash.harvard.edu:1/41291562 2023-05-15T17:21:19+02:00 Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland Pruss, Sara Knoll, Andrew 2017-11 application/pdf http://nrs.harvard.edu/urn-3:HUL.InstRepos:41291562 https://doi.org/10.1016/j.palaeo.2017.08.007 en_US eng Elsevier BV Palaeogeography, Palaeoclimatology, Palaeoecology Pruss, Sara B., and Andrew H. Knoll. 2017. Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland. Palaeogeography, Palaeoclimatology, Palaeoecology 485 (November): 917-929. 0031-0182 http://nrs.harvard.edu/urn-3:HUL.InstRepos:41291562 doi:10.1016/j.palaeo.2017.08.007 Palaeogeography, Palaeoclimatology, Palaeoecology Journal Article 2017 ftharvardudash https://doi.org/10.1016/j.palaeo.2017.08.007 2022-04-04T11:36:07Z An antagonistic view of the relationship between microbialites and metazoans has long been inferred, in part because of the large scale anticorrelation of these two groups through geologic time. The nexus of this relationship occurs in the Early Paleozoic Era: stromatolites declined in abundance as complex animals and algae diversified, but thrombolites, a type of microbialite little known before the Proterozoic-Cambrian boundary, proliferated for the first time. Well-preserved parasequences in the basal portion of the Lower Ordovician Boat Harbour Formation, western Newfoundland, contain a succession of stromatolites and thrombolites that permit an investigation into the role metazoans played in shaping the nature and abundance of microbialites in Early Paleozoic carbonate seas. Sessile benthic animals colonized thrombolite surfaces, but are nearly absent from stromatolites. Bioturbation rarely co-occurred with microbialites, but is widespread in clastic carbonates that lack microbialites. Our results, thus, support the hypothesis of ecological antagonism between microbial communities and motile benthic animals, but also demonstrate biological facilitation between thrombolites and both sessile benthic animals and nekton. Earth and Planetary Sciences Accepted Manuscript Article in Journal/Newspaper Newfoundland Harvard University: DASH - Digital Access to Scholarship at Harvard Boat Harbour ENVELOPE(69.433,69.433,-49.633,-49.633) Palaeogeography, Palaeoclimatology, Palaeoecology 485 917 929
institution Open Polar
collection Harvard University: DASH - Digital Access to Scholarship at Harvard
op_collection_id ftharvardudash
language English
description An antagonistic view of the relationship between microbialites and metazoans has long been inferred, in part because of the large scale anticorrelation of these two groups through geologic time. The nexus of this relationship occurs in the Early Paleozoic Era: stromatolites declined in abundance as complex animals and algae diversified, but thrombolites, a type of microbialite little known before the Proterozoic-Cambrian boundary, proliferated for the first time. Well-preserved parasequences in the basal portion of the Lower Ordovician Boat Harbour Formation, western Newfoundland, contain a succession of stromatolites and thrombolites that permit an investigation into the role metazoans played in shaping the nature and abundance of microbialites in Early Paleozoic carbonate seas. Sessile benthic animals colonized thrombolite surfaces, but are nearly absent from stromatolites. Bioturbation rarely co-occurred with microbialites, but is widespread in clastic carbonates that lack microbialites. Our results, thus, support the hypothesis of ecological antagonism between microbial communities and motile benthic animals, but also demonstrate biological facilitation between thrombolites and both sessile benthic animals and nekton. Earth and Planetary Sciences Accepted Manuscript
format Article in Journal/Newspaper
author Pruss, Sara
Knoll, Andrew
spellingShingle Pruss, Sara
Knoll, Andrew
Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland
author_facet Pruss, Sara
Knoll, Andrew
author_sort Pruss, Sara
title Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland
title_short Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland
title_full Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland
title_fullStr Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland
title_full_unstemmed Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland
title_sort environmental covariation of metazoans and microbialites in the lower ordovician boat harbour formation, newfoundland
publisher Elsevier BV
publishDate 2017
url http://nrs.harvard.edu/urn-3:HUL.InstRepos:41291562
https://doi.org/10.1016/j.palaeo.2017.08.007
long_lat ENVELOPE(69.433,69.433,-49.633,-49.633)
geographic Boat Harbour
geographic_facet Boat Harbour
genre Newfoundland
genre_facet Newfoundland
op_source Palaeogeography, Palaeoclimatology, Palaeoecology
op_relation Palaeogeography, Palaeoclimatology, Palaeoecology
Pruss, Sara B., and Andrew H. Knoll. 2017. Environmental Covariation of Metazoans and Microbialites in the Lower Ordovician Boat Harbour Formation, Newfoundland. Palaeogeography, Palaeoclimatology, Palaeoecology 485 (November): 917-929.
0031-0182
http://nrs.harvard.edu/urn-3:HUL.InstRepos:41291562
doi:10.1016/j.palaeo.2017.08.007
op_doi https://doi.org/10.1016/j.palaeo.2017.08.007
container_title Palaeogeography, Palaeoclimatology, Palaeoecology
container_volume 485
container_start_page 917
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