Nestoritherium

Nestoritherium is an extinct genus of chalicothere; it has been dated to have lived from the late Miocene to the Early Pleistocene (11.6–0.781 mya).^[2][3][4] This range makes Nestoritherium one of the most recently dated chalicotheres. It has been found in fossil sites in Myanmar and China.^[4]

Nestoritherium Temporal range: 11.6–0.781 Ma PreꞒ Ꞓ O S D C P T J K Pg N Late Miocene to Early Pleistocene
Skull of N. linxiaense, National Natural History Museum of China
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Perissodactyla
Family:	†Chalicotheriidae
Subfamily:	†Chalicotheriinae
Genus:	†Nestoritherium Kaup, 1859
Type species
†Nestoritherium sivalense Falconer & Cautley, 1837
Species
N. fuguense N. linxiaense[1] N. sivalense

The genus Nestoritherium was erected by German paleontologist Johann Jakob Kaup in 1859 for the species then known as Chalicotherium sivalense,^[5] itself named in 1843 by Falconer and Cautley from early Pleistocene material from India.^[6] The shortened faced and brachyodont dentition suggests it belongs to the subfamily Chalicotheriinae.^[1]

Nestoritherium fuguense was named from partial lower jaw and palate material from Miocene beds in Fugu County, China in 2014.^[6]

Material consisting of a fragmentary upper and lower molar recovered from the (early Pleistocene) Irrawaddy Formation in Myanmar has been referred to the genus Nestoritherium.^[7] A femur of possible chalicothere origin was recovered from Pliocene deposits in Yenangyaung in 1897.^[8]

References

1. "New Chalicothere Species Found From the Late Miocene of the Linxia Basin of Gansu, China". Chinese Academy of Sciences. 2012.
2. "A NEW SPECIES OF CHALICOTHERIINAE (PERISSODACTYLA,MAMMALIA) FROM THE LATE MIOCENE IN THE LINXIA BASIN OF GANSU,CHINA--《Vertebrata PalAsiatica》2012年01期". en.cnki.com.cn. Retrieved 2016-04-19.
3. "New Chalicothere Species Found From the Late Miocene of the Linxia Basin of Gansu, China----Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences". english.ivpp.cas.cn. Retrieved 2016-04-19.
4. "Fossilworks: Nestoritherium". fossilworks.org. Retrieved 17 December 2021.
5. Colbert, E. H. (1935). "The Proper Use of the Generic Name Nestoritherium". Journal of Mammalogy. 16 (3): 233–234. doi:10.1093/jmammal/16.3.233.
6. Xue, Xiang-Xu; Deng, Tao; Coombs, Margery; Zhang, Yun-Xiang (2014). "New chalicothere materials from the Late Miocene of Fugu, Shaanxi, China". Vertebrata PalAsiatica. 52: 401–426.
7. Tsubamoto, Takehisa; Zin-Maung-Maung-Thein; ThaungHtike; Egi, Naoko; Chit-Sein; Maung-Maung; Takai, Masanaru (2006). "Discovery of chalicothere and Dorcabune from the upper part (lower Pleistocene) of the Irrawaddy Formation, Myanmar" (PDF). Asian Paleoprimatology. 4: 137–142.
8. Hooijer, Dirk Albert (1951). "A Femur of a (?) Chalicothere from the Pliocene of Upper Burma". Journal of Mammalogy. 32 (4): 467–468. doi:10.1093/jmammal/32.4.467.