Review of the Cenozoic fossil fishes from the Tibetan Plateau and their bearings on paleoenvironment

CHANG, Mee-Mann; MIAO, DeSui

doi:10.1360/n972015-01372

Cited by 29 publications

(15 citation statements)

References 11 publications

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“…data, palaeobiological evidence bearing on timelines for uplift is scant, especially for the vast interior plateau 5 – 9 . Among the biotic proxies, plant megafossils, fishes and other vertebrates are environmentally sensitive and thus promising candidates for constraining the uplift of the plateau 13 – 22 . In addition to a fragmentary forelimb bone of an early Miocene fossil rhino 20 , only two late Oligocene to early Miocene fossil cyprinid (carps) species have been reported to date from the vast central area of the plateau.…”

Section: Introductionmentioning

confidence: 99%

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

Miao

Chang

et al. 2017

Sci Rep

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105

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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.

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Section: Introductionmentioning

confidence: 99%

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

Miao

Chang

et al. 2017

Sci Rep

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105

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“…The extensive QTP was elevated by >4,000 m ∼40 Mya [ 80 ], and this time is consistent with the divergence of T. siluroides . Therefore, we speculated that the speciation of Triplophysa was likely triggered by the uplifting of the QTP [ 81 ].…”

Section: Discussionmentioning

confidence: 99%

Chromosomal genome of Triplophysa bleekeri provides insights into its evolution and environmental adaptation

Yuan

Chen

et al. 2020

GigaScience

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Background Intense stresses caused by high-altitude environments may result in noticeable genetic adaptions in native species. Studies of genetic adaptations to high elevations have been largely limited to terrestrial animals. How fish adapt to high-elevation environments is largely unknown. Triplophysa bleekeri, an endemic fish inhabiting high-altitude regions, is an excellent model to investigate the genetic mechanisms of adaptation to the local environment. Here, we assembled a chromosomal genome sequence of T. bleekeri, with a size of ∼628 Mb (contig and scaffold N50 of 3.1 and 22.9 Mb, respectively). We investigated the origin and environmental adaptation of T. bleekeri based on 21,198 protein-coding genes in the genome. Results Compared with fish species living at low altitudes, gene families associated with lipid metabolism and immune response were significantly expanded in the T. bleekeri genome. Genes involved in DNA repair exhibit positive selection for T. bleekeri, Triplophysa siluroides, and Triplophysa tibetana, indicating that adaptive convergence in Triplophysa species occurred at the positively selected genes. We also analyzed whole-genome variants among samples from 3 populations. The results showed that populations separated by geological and artificial barriers exhibited obvious differences in genetic structures, indicating that gene flow is restricted between populations. Conclusions These results will help us expand our understanding of environmental adaptation and genetic diversity of T. bleekeri and provide valuable genetic resources for future studies on the evolution and conservation of high-altitude fish species such as T. bleekeri.

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“…行甚至只有1行咽齿, 大约分布在海拔3750~4750 m的高度区间 [56] . 这可能是"演变与隆起并进"(ascent with modifications)的结果 [6,12] , 是鱼类区系演替对高原生长的响应 [56,57] . 再加上鱼类属于冷血的水生动物, 对环境变化极其敏感, 且多保存在原地, 因此可以根据裂腹鱼类形态特征和鱼群基本面貌反推某一地质历史时期栖息区域的海拔和环境 [12] .…”

Section: 植物化石unclassified

“…这可能是"演变与隆起并进"(ascent with modifications)的结果 [6,12] , 是鱼类区系演替对高原生长的响应 [56,57] . 再加上鱼类属于冷血的水生动物, 对环境变化极其敏感, 且多保存在原地, 因此可以根据裂腹鱼类形态特征和鱼群基本面貌反推某一地质历史时期栖息区域的海拔和环境 [12] . 在伦坡拉盆地早中新世地层中, 以春霖鱼和始攀鲈为代表的热带鱼类已消失, 原始的裂腹鱼类大头近裂腹鱼(Plesioschizothorax macrocephalus)取而代之.…”

Section: 植物化石unclassified

“…随着高原的继续隆升, 至上新世达到现代高度和整体规模 [25] , 仅有一列咽喉齿的高度特化的裂腹鱼随之出现. 在青藏高原南部札达盆地的上新世札达组中发现了高度特化裂腹鱼化石 [6,12] . 在青藏高原北部昆仑山口盆地的上新世羌塘组中发现今天高度特化裂腹鱼类的代表裸鲤属(Gymnocypris)化石, 且在鱼群组成面貌上, 高原鳅明显多于裸鲤, 已呈现当地明显的现代特征 [6,12,59] .…”

Section: 植物化石unclassified

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Significant shift in the terrestrial ecosystem at the Paleogene/Neogene boundary in the Tibetan Plateau

Deng

Wang

et al. 2019

Chin. Sci. Bull.

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Review of the Cenozoic fossil fishes from the Tibetan Plateau and their bearings on paleoenvironment

Cited by 29 publications

References 11 publications

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

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

Chromosomal genome of Triplophysa bleekeri provides insights into its evolution and environmental adaptation

Significant shift in the terrestrial ecosystem at the Paleogene/Neogene boundary in the Tibetan Plateau

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