中国首次发现晚中新世西班牙羚(Hispanodorcas)
First report of Hispanodorcas from the Late Miocene of China
摘要
Abstract
As a small to middle-sized bovid,Hispanodorcas had previously only been found in the pan-Mediterranean region and South Asia.Its taxonomic classification at the tribe level has been a subject of debate,with possible associations to Antilopini,Reduncini,or Oiocerini.Here,we report on the first discovery of Hispanodorcas in East Asia,H.longdongica sp.nov.from the Daidian Locality in China,dating to the early Baodean age(～8-7 Ma).The new material consists of five skulls with varying states of preservation and provides the most complete osteological information on Hispanodorcas to date.It features a long,slender,and posteriorly curved horncore with a weak homonymous twist and both laterodorsal and medioventral grooves,which is characteristic of Hispanodorcas.This new species is characterized by having the smallest size amongst all known Hispanodorcas species,a weakly curved brain case in the facial region,and poorly developed posterior and anterior basilar tuberosities.These primitive characteristics suggest that H.longdongica may represent an early evolutionary stage of this genus.Furthermore,they indicate that Hispanodorcas might have directly evolved from the Gazella stock.The homonymous twist in the horncore,which aligns with Oiocerini,may be a case of homoplasy.关键词
甘肃庆阳/东亚/保德期/羚羊族/三趾马动物群/西班牙羚Key words
Qingyang,Gansu/East Asia/Baodean/Antilopini/Hipparion fauna/Hispanodorcas分类
生物科学引用本文复制引用
吴勇,王世骐,梁志勇,郭丁歌,孙博阳,刘龙,段凯,陈国忠..中国首次发现晚中新世西班牙羚(Hispanodorcas)[J].古脊椎动物学报（中英文）,2024,62(2):135-155,21.基金项目
国家重点研发计划(编号:2023YFF0804501)、第二次青藏科考(编号:2019QZKK0705)和甘肃省级古生物化石保护项目资助. We thank Ye Jie,Li Chunxiao,and Sun Danhui,Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences （编号:2023YFF0804501）
Li Yikun,Shenyang Normal University （）
Liu Yonggang,Zhang Lei,Department of Natural Resources of Gansu Province （）
Li Tingwei,Nan Yongqiang,Zhang Xinming,Guo Feihong,Qingyang Bureau of Natural and Resources （）
Li Yan,Gansu Provincial Museum （）
Peng Cuo,Zhou Lingqi,Gansu Geological Museum （）
Li Daqing,Yang Jingtao,Gansu Agricultural University （）
Dai Shuang,Lanzhou University （）
Liang Jiwei,Chang'an University,for participating in this work.The work was supported by the National Key Research and Development Program of China(No.2023YFF0804501),the Second Tibetan Plateau Scientific Expedition(2019QZKK0705),and the Fossil Protection Project issued by the Department of Natural Resources of Gansu Province,China. （No.2023YFF0804501）
