Received date: 2023-11-13
Online published: 2024-01-23
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.
Key words： Qingyang, Gansu; East Asia; Baodean; Antilopini; Hipparion fauna; Hispanodorcas
WU Yong , WANG Shi-Qi , LIANG Zhi-Yong , GUO Ding-Ge , SUN Bo-Yang , LIU Long , DUAN Kai , CHEN Guo-Zhong . First report of Hispanodorcas from the Late Miocene of China[J]. Vertebrata Palasiatica, 2024 , 62(2) : 135 -155 . DOI: 10.19615/j.cnki.2096-9899.240123
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