Late Miocene Hipparion (Equidae, Perissodactyla) fossils from Fugu, northern Shaanxi, China, and their stratigraphic significance

doi:10.1007/s10914-023-09674-4

	Late Miocene Hipparion (Equidae, Perissodactyla) fossils from Fugu, northern Shaanxi, China, and their stratigraphic significance
	Li, Yangfan 1,2,3; Sun, Boyang 4,5,6; Deng, Tao 4,5,6; Hua, Hong 1,2
刊名	JOURNAL OF MAMMALIAN EVOLUTION
	2023-07-24
页码	15
关键词	Morphology Paleoecology Stratigraphy The Loess Plateau
ISSN号	1064-7554
DOI	10.1007/s10914-023-09674-4
通讯作者	Li, Yangfan(liyangfan@nwu.edu.cn)
英文摘要	We describe new material of Hipparion (Hippotherium) chiai from Fugu, northern Shaanxi, China. This collection represents the greatest number of skulls and mandibles of H. chiai that have been reported from a given locality. The late Miocene (7.8 Ma) occurrence of this species is an important chronological and palaeoecological reference for the Lamagou fauna. However, its slender limb bones and prototypical "spring foot" are derived traits that are more suited to rapid running and are a standard sign of adaptation to an open habitat. This also means that H. chiai was a grassland dweller that was well adapted to a cursorial lifestyle. Based on the ontogenetic sequence, we establish a new peer comparison framework for fossils of the same ontogenetic age. Using this peer comparison framework, we find that, compared with holotype specimens, H. chiai of the Lamagou fauna has a wider anterostyle, shorter protocone, weaker plications, rounder metastylid, and a deeper ectoflexid. These intraspecific variations reveal the evolutionary transition between the late Miocene and Pliocene Hipparion in the Old World, and these fossils can be seen as the final phase of H. chiai. These findings and the new peer comparison framework have broad applications to the systematic paleontology of hipparionine horses. This study supports the assertion that H. chiai is the most stable time indicator of the late Miocene Bahean age in northern China and has important stratigraphic significance.
WOS关键词	NEOGENE ; BIOSTRATIGRAPHY ; GEOCHRONOLOGY ; SUBDIVISION ; SEQUENCE ; BASIN
WOS研究方向	Evolutionary Biology ; Zoology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:001032303300001
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42515]
专题	中国科学院南京地质古生物研究所
通讯作者	Li, Yangfan
作者单位	1.Northwest Univ, Inst Cenozo Geol & Environm, State Key Lab Continental Dynam, Xian, Peoples R China 2.Northwest Univ, Dept Geol, Xian, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 6.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Yangfan,Sun, Boyang,Deng, Tao,et al. Late Miocene Hipparion (Equidae, Perissodactyla) fossils from Fugu, northern Shaanxi, China, and their stratigraphic significance[J]. JOURNAL OF MAMMALIAN EVOLUTION,2023:15.
APA	Li, Yangfan,Sun, Boyang,Deng, Tao,&Hua, Hong.(2023).Late Miocene Hipparion (Equidae, Perissodactyla) fossils from Fugu, northern Shaanxi, China, and their stratigraphic significance.JOURNAL OF MAMMALIAN EVOLUTION,15.
MLA	Li, Yangfan,et al."Late Miocene Hipparion (Equidae, Perissodactyla) fossils from Fugu, northern Shaanxi, China, and their stratigraphic significance".JOURNAL OF MAMMALIAN EVOLUTION (2023):15.