Subjects: Biology >> Zoology submitted time 2022-08-02 Cooperative journals: 《古脊椎动物学报》
Abstract： Qi (1990) named a new hyracodontid genus Ulania from the Middle Eocene deposits of Nei Mongol (Inner Mongolia), China. However, the generic name has been preoccupied by Ulania Lin & Zhang, 1979, a Cambrian trilobite (Zhu et al., 1979:103). We therefore propose a new generic name Ulanodon gen. nov. to replace Ulania Qi, 1990. “Ulan” means red in color in Mongolian language, and the Greek “-odon” is a common root in hyracodontid names meaning teeth. We thank Mr. John Ponting for bringing this issue to our attention, and Dr. Wang Yuan-Qing for the suggestion of the new generic name.
Subjects: Biology >> Zoology submitted time 2022-08-02 Cooperative journals: 《古脊椎动物学报》
Abstract： The Lijiang Fauna from the Lijiang Formation of Lijiang, western Yunnan, was dominated by 13 species of perissodactyl fossils, and its age ranged from Irdinmanhan to Sharamurunian Asian Land Mammal Ages (ALMA) according to previous research. Based on reanalysis of some perissodactyls from the Lijiang Fauna, it is suggested here that Rhodopagus yunnanensis is a junior synonym of Lijiangia zhangi, which is similar to Lophiohippus and placed in Anchilophini within the Palaeotheriidae. The enigmatic and scarce Lunania is here regarded as a palaeothere rather than a chalicothere based on its morphological similarities with Paranchilophus, and Lophiohippus probably represents the upper dentitions of Lunania. Furthermore, deperetellid Diplolophodon is revised and comprised of three species: D. similis, D. lunanensis, and D. xiangshanensis (comb. nov.). Teleolophus xiangshanensis from the Lijiang Formation is reassigned to Diplolophodon xiangshanensis. The revised perissodactyls from the Lijiang Fauna are comparable to those from the Rencun Member of the Hedi Formation of the Yuanqu Basin, and its age is confined to Sharamurunian ALMA.
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