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Dietary adaptations and palaeoecology of Lophialetidae (Mammalia, Tapiroidea) from the Eocene of the Erlian Basin, China: combined evidence from mesowear and stable isotope analyses

文献类型：期刊论文

作者Gong, Yanxin2,3,4; Wang, Yuanqing2,3,4; Wang, Yang5,6,7; Mao, Fangyuan1,2,4; Bai, Bin2,4; Wang, Haibing2,4; Li, Qian2,4; Jin, Xun2,4; Wang, Xu8; Meng, Jin1
刊名PALAEONTOLOGY
出版日期2019-12-18
页码18
ISSN号0031-0239
关键词Inner Mongolia ungulate palaeodiet palaeoecology mesowear stable carbon isotope
DOI10.1111/pala.12471
通讯作者Gong, Yanxin(gongyanxin@ivpp.ac.cn) ; Wang, Yuanqing(wangyuanqing@ivpp.ac.cn)
英文摘要Lophialetidae is an extinct group of endemic Asiatic tapiroids that are widely distributed in the Eocene sediments of Asia. Schlosseria magister and Lophialetes expeditus are the most abundant species in this family. However, their dietary and ecological characteristics are largely unknown. For the first time, we reconstruct the palaeodiet and habitat of these two lophialetids using a combination of mesowear and stable carbon isotope analysis of fossil teeth excavated from the Erlian Basin, China. Mesowear analysis (n = 141) suggests that the dietary structure of S. magister and L. expeditus shifted from less to more abrasive diets from 52 to 42 Ma. Stable carbon isotope analysis (n = 137) suggests that the habitats of S. magister and L. expeditus became drier and/or more open through time. The dietary shifts of the two lophialetids are consistent with evident changes in habitat. The changes in the diet and habitat were probably related to global climate change during that time period. The gradual drop in global temperatures during the early-middle Eocene led to a drier and more open terrestrial ecosystem in the Erlian Basin, probably resulting in changes in floral composition of the environment inhabited by S. magister and L. expeditus. Hence, herbivores highly susceptible to vegetation modification had to develop new resource exploitation strategies to adapt to these changes. Schlosseria magister, considered to be the sister-group of L. expeditus and with a low level of ecological flexibility, was unable to adapt to the habitat changes finally becoming extinct at 45 Ma.
WOS关键词LATE MIOCENE ; UNGULATE MAMMALS ; LATE PLEISTOCENE ; FEEDING ECOLOGY ; TIBETAN PLATEAU ; CARBON ISOTOPES ; FOSSIL MAMMALS ; BONE APATITE ; TOOTH ; EXTINCT
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41572021] ; National Natural Science Foundation of China[41672014] ; 'Joint PhD Training Program' in UCAS ; National Science Foundation[DMR-1644779] ; State of Florida
WOS研究方向Paleontology
语种英语
出版者WILEY
WOS记录号WOS:000503103000001
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; 'Joint PhD Training Program' in UCAS ; National Science Foundation ; State of Florida
源URL[http://119.78.100.205/handle/311034/16865]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者Gong, Yanxin; Wang, Yuanqing
作者单位1.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA
2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
5.Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA
6.Natl High Magnet Field Lab, Tallahassee, FL 32306 USA
7.Jinan Univ, Inst Groundwater & Earth Sci, Guangzhou 510632, Guangdong, Peoples R China
8.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Gong, Yanxin,Wang, Yuanqing,Wang, Yang,et al. Dietary adaptations and palaeoecology of Lophialetidae (Mammalia, Tapiroidea) from the Eocene of the Erlian Basin, China: combined evidence from mesowear and stable isotope analyses[J]. PALAEONTOLOGY,2019:18.
APA Gong, Yanxin.,Wang, Yuanqing.,Wang, Yang.,Mao, Fangyuan.,Bai, Bin.,...&Meng, Jin.(2019).Dietary adaptations and palaeoecology of Lophialetidae (Mammalia, Tapiroidea) from the Eocene of the Erlian Basin, China: combined evidence from mesowear and stable isotope analyses.PALAEONTOLOGY,18.
MLA Gong, Yanxin,et al."Dietary adaptations and palaeoecology of Lophialetidae (Mammalia, Tapiroidea) from the Eocene of the Erlian Basin, China: combined evidence from mesowear and stable isotope analyses".PALAEONTOLOGY (2019):18.

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来源：古脊椎动物与古人类研究所

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