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Perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the Cenozoic in Asia
Cenozoic mammal evolution and faunal turnover are considered to have been influenced and triggered by global climate change. Teeth of large terrestrial ungulates are reliable proxies to trace long‐term climatic changes due to their morphological and physicochemical properties; however, the role of p...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7381588/ https://www.ncbi.nlm.nih.gov/pubmed/32724516 http://dx.doi.org/10.1002/ece3.6363 |
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author | Bai, Bin Meng, Jin Janis, Christine M. Zhang, Zhao‐Qun Wang, Yuan‐Qing |
author_facet | Bai, Bin Meng, Jin Janis, Christine M. Zhang, Zhao‐Qun Wang, Yuan‐Qing |
author_sort | Bai, Bin |
collection | PubMed |
description | Cenozoic mammal evolution and faunal turnover are considered to have been influenced and triggered by global climate change. Teeth of large terrestrial ungulates are reliable proxies to trace long‐term climatic changes due to their morphological and physicochemical properties; however, the role of premolar molarization in ungulate evolution and related climatic change has rarely been investigated. Recently, three patterns of premolar molarization among perissodactyls have been recognized: endoprotocrista‐derived hypocone (type I); paraconule–protocone separation (type II); and metaconule‐derived pseudohypocone (type III). These three patterns of premolar molarization play an important role in perissodactyl diversity coupled with global climate change during the Cenozoic in Asia. Those groups with a relatively higher degree of premolar molarization, initiated by the formation of the hypocone, survived into Neogene, whereas those with a lesser degree of molarization, initiated by the deformation of existing ridges and cusps, went extinct by the end of the Oligocene. In addition, the hypothesis of the “Ulan Gochu Decline” is proposed here to designate the most conspicuous decrease of perissodactyl diversity that occurred in the latest middle Eocene rather than at the Eocene–Oligocene transition in Asia, as conventionally thought; this event was likely comparable to the contemporaneous post‐Uintan decline of the North American land fauna. |
format | Online Article Text |
id | pubmed-7381588 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-73815882020-07-27 Perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the Cenozoic in Asia Bai, Bin Meng, Jin Janis, Christine M. Zhang, Zhao‐Qun Wang, Yuan‐Qing Ecol Evol Original Research Cenozoic mammal evolution and faunal turnover are considered to have been influenced and triggered by global climate change. Teeth of large terrestrial ungulates are reliable proxies to trace long‐term climatic changes due to their morphological and physicochemical properties; however, the role of premolar molarization in ungulate evolution and related climatic change has rarely been investigated. Recently, three patterns of premolar molarization among perissodactyls have been recognized: endoprotocrista‐derived hypocone (type I); paraconule–protocone separation (type II); and metaconule‐derived pseudohypocone (type III). These three patterns of premolar molarization play an important role in perissodactyl diversity coupled with global climate change during the Cenozoic in Asia. Those groups with a relatively higher degree of premolar molarization, initiated by the formation of the hypocone, survived into Neogene, whereas those with a lesser degree of molarization, initiated by the deformation of existing ridges and cusps, went extinct by the end of the Oligocene. In addition, the hypothesis of the “Ulan Gochu Decline” is proposed here to designate the most conspicuous decrease of perissodactyl diversity that occurred in the latest middle Eocene rather than at the Eocene–Oligocene transition in Asia, as conventionally thought; this event was likely comparable to the contemporaneous post‐Uintan decline of the North American land fauna. John Wiley and Sons Inc. 2020-06-10 /pmc/articles/PMC7381588/ /pubmed/32724516 http://dx.doi.org/10.1002/ece3.6363 Text en © 2020 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Bai, Bin Meng, Jin Janis, Christine M. Zhang, Zhao‐Qun Wang, Yuan‐Qing Perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the Cenozoic in Asia |
title | Perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the Cenozoic in Asia |
title_full | Perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the Cenozoic in Asia |
title_fullStr | Perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the Cenozoic in Asia |
title_full_unstemmed | Perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the Cenozoic in Asia |
title_short | Perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the Cenozoic in Asia |
title_sort | perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the cenozoic in asia |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7381588/ https://www.ncbi.nlm.nih.gov/pubmed/32724516 http://dx.doi.org/10.1002/ece3.6363 |
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