A New Species of Comptonia (Myricaceae) from the Early Miocene of Central Inner Mongolia, China, and Phytogeographic History of Sweet–Fern
SIMPLE SUMMARY: The deciduous shrub Comptonia is a monotypic genus of Myricaceae, which currently is distributed only in eastern North America, with a smaller range than that in other periods of the Cenozoic. By analyzing the macroscopic and microscopic characteristics of the leaves, we describe a n...
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ftpubmed:oai:pubmedcentral.nih.gov:9495675 2023-05-15T15:42:42+02:00 A New Species of Comptonia (Myricaceae) from the Early Miocene of Central Inner Mongolia, China, and Phytogeographic History of Sweet–Fern Ji, Deshuang Xiao, Liang Guo, Liyan Li, Xiangchuan Wu, Zeling Liang, Jiaqi Wang, Meiting Xia, Xiaoyuan Sun, Nan Fu, Chaofeng 2022-09-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9495675/ https://doi.org/10.3390/biology11091326 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9495675/ http://dx.doi.org/10.3390/biology11091326 © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). CC-BY Biology (Basel) Article Text 2022 ftpubmed https://doi.org/10.3390/biology11091326 2022-09-25T01:11:37Z SIMPLE SUMMARY: The deciduous shrub Comptonia is a monotypic genus of Myricaceae, which currently is distributed only in eastern North America, with a smaller range than that in other periods of the Cenozoic. By analyzing the macroscopic and microscopic characteristics of the leaves, we describe a new species of Comptonia (i.e., Comptonia hirsuta) from the Hannuoba Formation in Zhuozi, Inner Mongolia, North China. The co-occurring fruits were also studied based on their morphological characteristics, which were assigned to Comptonia tymensis. Variation in the distribution range of Comptonia indicates the influence of global cooling on the expansion of this plant. Furthermore, the Bering Land Bridge played an important role in the migration from North America to East Asia. The Thulean route may have provided an opportunity for plant exchange between western Europe and eastern North America. Moreover, the reason for the disappearance of Comptonia from China according to the analysis of the changes in both the global climate and the distribution of Comptonia fossils is also discussed. It is suggested that the climatic changes after the late Miocene and the progenitive pattern of Comptonia together caused the disappearance of Comptonia in China. ABSTRACT: Comptonia (Myricaceae) is well known as a monotypic genus living only in eastern North America; however, fossils show that the genus occurred extensively in the Northern Hemisphere during the Cenozoic. We observed dozens of Comptonia leaf fossils from the early Miocene in Zhuozi, China. The leaf architecture characteristics and epidermal features of the fossil specimens are described in detail here for the first time, and they were assigned to a new species: Comptonia hirsuta. The fruit fossils collected simultaneously from the same layer were assigned to Comptonia tymensis. The global fossil records indicate that the spatial distribution range of Comptonia reached its peak in both the Eocene and Miocene as two warm periods and then gradually decreased in the ... Text Bering Land Bridge PubMed Central (PMC) Biology 11 9 1326 |
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Article Ji, Deshuang Xiao, Liang Guo, Liyan Li, Xiangchuan Wu, Zeling Liang, Jiaqi Wang, Meiting Xia, Xiaoyuan Sun, Nan Fu, Chaofeng A New Species of Comptonia (Myricaceae) from the Early Miocene of Central Inner Mongolia, China, and Phytogeographic History of Sweet–Fern |
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description |
SIMPLE SUMMARY: The deciduous shrub Comptonia is a monotypic genus of Myricaceae, which currently is distributed only in eastern North America, with a smaller range than that in other periods of the Cenozoic. By analyzing the macroscopic and microscopic characteristics of the leaves, we describe a new species of Comptonia (i.e., Comptonia hirsuta) from the Hannuoba Formation in Zhuozi, Inner Mongolia, North China. The co-occurring fruits were also studied based on their morphological characteristics, which were assigned to Comptonia tymensis. Variation in the distribution range of Comptonia indicates the influence of global cooling on the expansion of this plant. Furthermore, the Bering Land Bridge played an important role in the migration from North America to East Asia. The Thulean route may have provided an opportunity for plant exchange between western Europe and eastern North America. Moreover, the reason for the disappearance of Comptonia from China according to the analysis of the changes in both the global climate and the distribution of Comptonia fossils is also discussed. It is suggested that the climatic changes after the late Miocene and the progenitive pattern of Comptonia together caused the disappearance of Comptonia in China. ABSTRACT: Comptonia (Myricaceae) is well known as a monotypic genus living only in eastern North America; however, fossils show that the genus occurred extensively in the Northern Hemisphere during the Cenozoic. We observed dozens of Comptonia leaf fossils from the early Miocene in Zhuozi, China. The leaf architecture characteristics and epidermal features of the fossil specimens are described in detail here for the first time, and they were assigned to a new species: Comptonia hirsuta. The fruit fossils collected simultaneously from the same layer were assigned to Comptonia tymensis. The global fossil records indicate that the spatial distribution range of Comptonia reached its peak in both the Eocene and Miocene as two warm periods and then gradually decreased in the ... |
format |
Text |
author |
Ji, Deshuang Xiao, Liang Guo, Liyan Li, Xiangchuan Wu, Zeling Liang, Jiaqi Wang, Meiting Xia, Xiaoyuan Sun, Nan Fu, Chaofeng |
author_facet |
Ji, Deshuang Xiao, Liang Guo, Liyan Li, Xiangchuan Wu, Zeling Liang, Jiaqi Wang, Meiting Xia, Xiaoyuan Sun, Nan Fu, Chaofeng |
author_sort |
Ji, Deshuang |
title |
A New Species of Comptonia (Myricaceae) from the Early Miocene of Central Inner Mongolia, China, and Phytogeographic History of Sweet–Fern |
title_short |
A New Species of Comptonia (Myricaceae) from the Early Miocene of Central Inner Mongolia, China, and Phytogeographic History of Sweet–Fern |
title_full |
A New Species of Comptonia (Myricaceae) from the Early Miocene of Central Inner Mongolia, China, and Phytogeographic History of Sweet–Fern |
title_fullStr |
A New Species of Comptonia (Myricaceae) from the Early Miocene of Central Inner Mongolia, China, and Phytogeographic History of Sweet–Fern |
title_full_unstemmed |
A New Species of Comptonia (Myricaceae) from the Early Miocene of Central Inner Mongolia, China, and Phytogeographic History of Sweet–Fern |
title_sort |
new species of comptonia (myricaceae) from the early miocene of central inner mongolia, china, and phytogeographic history of sweet–fern |
publisher |
MDPI |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9495675/ https://doi.org/10.3390/biology11091326 |
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Bering Land Bridge |
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Bering Land Bridge |
op_source |
Biology (Basel) |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9495675/ http://dx.doi.org/10.3390/biology11091326 |
op_rights |
© 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
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https://doi.org/10.3390/biology11091326 |
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Biology |
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11 |
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9 |
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1326 |
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