Fossil climbing perch and associated plant megafossils indicate a warm and wet central Tibet during the late Oligocene

Abstract Understanding the Tibetan Plateau’s palaeogeography and palaeoenvironment is critical for reconstructing Asia’s climatic history; however, aspects of the plateau’s uplift history remain unclear. Here, we report a fossil biota that sheds new light on these issues. It comprises a fossil climb...

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Autores principales:	Feixiang Wu, Desui Miao, Mee-mann Chang, Gongle Shi, Ning Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/19374d584f8c45109d922bcc832d22b0
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spelling	oai:doaj.org-article:19374d584f8c45109d922bcc832d22b02021-12-02T11:53:03ZFossil climbing perch and associated plant megafossils indicate a warm and wet central Tibet during the late Oligocene10.1038/s41598-017-00928-92045-2322https://doaj.org/article/19374d584f8c45109d922bcc832d22b02017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00928-9https://doaj.org/toc/2045-2322Abstract Understanding the Tibetan Plateau’s palaeogeography and palaeoenvironment is critical for reconstructing Asia’s climatic history; however, aspects of the plateau’s uplift history remain unclear. Here, we report a fossil biota that sheds new light on these issues. It comprises a fossil climbing perch (Anabantidae) and a diverse subtropical fossil flora from the Chattian (late Oligocene) of central Tibet. The fish, Eoanabas thibetana gen. et sp. nov., is inferred to be closely related to extant climbing perches from tropical lowlands in south Asia and sub-Saharan Africa. It has osteological correlates of a labyrinth organ, which in extant climbing perches gives them the ability to breathe air to survive warm, oxygen-poor stagnant waters or overland excursion under moist condition. This indicates that Eoanabas likewise lived in a warm and humid environment as suggested by the co-existing plant assemblage including palms and golden rain trees among others. As a palaeoaltimeter, this fossil biota suggests an elevation of ca. 1,000 m. These inferences conflict with conclusions of a high and dry Tibet claimed by some recent and influential palaeoaltimetry studies. Our discovery prompts critical re-evaluation of prevailing uplift models of the plateau and their temporal relationships with the Cenozoic climatic changes.Feixiang WuDesui MiaoMee-mann ChangGongle ShiNing WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Feixiang Wu Desui Miao Mee-mann Chang Gongle Shi Ning Wang Fossil climbing perch and associated plant megafossils indicate a warm and wet central Tibet during the late Oligocene
description	Abstract Understanding the Tibetan Plateau’s palaeogeography and palaeoenvironment is critical for reconstructing Asia’s climatic history; however, aspects of the plateau’s uplift history remain unclear. Here, we report a fossil biota that sheds new light on these issues. It comprises a fossil climbing perch (Anabantidae) and a diverse subtropical fossil flora from the Chattian (late Oligocene) of central Tibet. The fish, Eoanabas thibetana gen. et sp. nov., is inferred to be closely related to extant climbing perches from tropical lowlands in south Asia and sub-Saharan Africa. It has osteological correlates of a labyrinth organ, which in extant climbing perches gives them the ability to breathe air to survive warm, oxygen-poor stagnant waters or overland excursion under moist condition. This indicates that Eoanabas likewise lived in a warm and humid environment as suggested by the co-existing plant assemblage including palms and golden rain trees among others. As a palaeoaltimeter, this fossil biota suggests an elevation of ca. 1,000 m. These inferences conflict with conclusions of a high and dry Tibet claimed by some recent and influential palaeoaltimetry studies. Our discovery prompts critical re-evaluation of prevailing uplift models of the plateau and their temporal relationships with the Cenozoic climatic changes.
format	article
author	Feixiang Wu Desui Miao Mee-mann Chang Gongle Shi Ning Wang
author_facet	Feixiang Wu Desui Miao Mee-mann Chang Gongle Shi Ning Wang
author_sort	Feixiang Wu
title	Fossil climbing perch and associated plant megafossils indicate a warm and wet central Tibet during the late Oligocene
title_short	Fossil climbing perch and associated plant megafossils indicate a warm and wet central Tibet during the late Oligocene
title_full	Fossil climbing perch and associated plant megafossils indicate a warm and wet central Tibet during the late Oligocene
title_fullStr	Fossil climbing perch and associated plant megafossils indicate a warm and wet central Tibet during the late Oligocene
title_full_unstemmed	Fossil climbing perch and associated plant megafossils indicate a warm and wet central Tibet during the late Oligocene
title_sort	fossil climbing perch and associated plant megafossils indicate a warm and wet central tibet during the late oligocene
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/19374d584f8c45109d922bcc832d22b0
work_keys_str_mv	AT feixiangwu fossilclimbingperchandassociatedplantmegafossilsindicateawarmandwetcentraltibetduringthelateoligocene AT desuimiao fossilclimbingperchandassociatedplantmegafossilsindicateawarmandwetcentraltibetduringthelateoligocene AT meemannchang fossilclimbingperchandassociatedplantmegafossilsindicateawarmandwetcentraltibetduringthelateoligocene AT gongleshi fossilclimbingperchandassociatedplantmegafossilsindicateawarmandwetcentraltibetduringthelateoligocene AT ningwang fossilclimbingperchandassociatedplantmegafossilsindicateawarmandwetcentraltibetduringthelateoligocene
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Fossil climbing perch and associated plant megafossils indicate a warm and wet central Tibet during the late Oligocene

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