New Hystrix (Hystricidae, Rodentia) from the Neogene of Linxia Basin, Gansu, China
Received date: 2020-03-20
Online published: 2020-07-20
Four well preserved skulls of Hystrix recently collected from Linxia Basin were studied and a new species, H. brevirostra sp. nov, was established for them. The new species is characterized by its larger size, relatively low and wide skull with short rostrum and diastema, slightly posteriorly convex posterior border of relatively short nasal roughly aligning with lacrimal, shorter and deeply curved mandibular diastema, and relatively low-crowned cheek teeth. It is intermediate between H. lufengensis and H. gansuensis in evolutionary level, existing in Late Miocene-Pliocene. While it might represent a lineage separated from the above two species. Ontogenetic variation in skull morphology and direction of cheek tooth rows of the new species was also discussed.
WANG Ban-Yue, QIU Zhan-Xiang . New Hystrix (Hystricidae, Rodentia) from the Neogene of Linxia Basin, Gansu, China[J]. Vertebrata Palasiatica, 2020 , 58(3) : 204 -220 . DOI: 10.19615/j.cnki.1000-3118.200514
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