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Sea level regulated tetrapod diversity dynamics through the Jurassic/Cretaceous interval
Reconstructing deep time trends in biodiversity remains a central goal for palaeobiologists, but our understanding of the magnitude and tempo of extinctions and radiations is confounded by uneven sampling of the fossil record. In particular, the Jurassic/Cretaceous (J/K) boundary, 145 million years...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025807/ https://www.ncbi.nlm.nih.gov/pubmed/27587285 http://dx.doi.org/10.1038/ncomms12737 |
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author | Tennant, Jonathan P. Mannion, Philip D. Upchurch, Paul |
author_facet | Tennant, Jonathan P. Mannion, Philip D. Upchurch, Paul |
author_sort | Tennant, Jonathan P. |
collection | PubMed |
description | Reconstructing deep time trends in biodiversity remains a central goal for palaeobiologists, but our understanding of the magnitude and tempo of extinctions and radiations is confounded by uneven sampling of the fossil record. In particular, the Jurassic/Cretaceous (J/K) boundary, 145 million years ago, remains poorly understood, despite an apparent minor extinction and the radiation of numerous important clades. Here we apply a rigorous subsampling approach to a comprehensive tetrapod fossil occurrence data set to assess the group's macroevolutionary dynamics through the J/K transition. Although much of the signal is exclusively European, almost every higher tetrapod group was affected by a substantial decline across the boundary, culminating in the extinction of several important clades and the ecological release and radiation of numerous modern tetrapod groups. Variation in eustatic sea level was the primary driver of these patterns, controlling biodiversity through availability of shallow marine environments and via allopatric speciation on land. |
format | Online Article Text |
id | pubmed-5025807 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-50258072016-09-23 Sea level regulated tetrapod diversity dynamics through the Jurassic/Cretaceous interval Tennant, Jonathan P. Mannion, Philip D. Upchurch, Paul Nat Commun Article Reconstructing deep time trends in biodiversity remains a central goal for palaeobiologists, but our understanding of the magnitude and tempo of extinctions and radiations is confounded by uneven sampling of the fossil record. In particular, the Jurassic/Cretaceous (J/K) boundary, 145 million years ago, remains poorly understood, despite an apparent minor extinction and the radiation of numerous important clades. Here we apply a rigorous subsampling approach to a comprehensive tetrapod fossil occurrence data set to assess the group's macroevolutionary dynamics through the J/K transition. Although much of the signal is exclusively European, almost every higher tetrapod group was affected by a substantial decline across the boundary, culminating in the extinction of several important clades and the ecological release and radiation of numerous modern tetrapod groups. Variation in eustatic sea level was the primary driver of these patterns, controlling biodiversity through availability of shallow marine environments and via allopatric speciation on land. Nature Publishing Group 2016-09-02 /pmc/articles/PMC5025807/ /pubmed/27587285 http://dx.doi.org/10.1038/ncomms12737 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Tennant, Jonathan P. Mannion, Philip D. Upchurch, Paul Sea level regulated tetrapod diversity dynamics through the Jurassic/Cretaceous interval |
title | Sea level regulated tetrapod diversity dynamics through the Jurassic/Cretaceous interval |
title_full | Sea level regulated tetrapod diversity dynamics through the Jurassic/Cretaceous interval |
title_fullStr | Sea level regulated tetrapod diversity dynamics through the Jurassic/Cretaceous interval |
title_full_unstemmed | Sea level regulated tetrapod diversity dynamics through the Jurassic/Cretaceous interval |
title_short | Sea level regulated tetrapod diversity dynamics through the Jurassic/Cretaceous interval |
title_sort | sea level regulated tetrapod diversity dynamics through the jurassic/cretaceous interval |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025807/ https://www.ncbi.nlm.nih.gov/pubmed/27587285 http://dx.doi.org/10.1038/ncomms12737 |
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