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 Late Miocene to Early Pleistocene
Skull of N. linxiaense, National Natural History Museum of China
Scientific classification Edit this 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

edit
  1. ^ a b "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. ^ a b "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. ^ a b 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.