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Parahippus leonensis : ウィキペディア英語版 | Parahippus leonensis
''Parahippus leonensis'' is an extinct proto-horse of the family Equidae that was endemic to North America during the Miocene from 23.030—16.3 Ma living for approximately .〔(Paleobiology Database: ''Parahippus leonensis'' basic info )〕 ''Parahippus leonensis'' was named for Leon or more specifically Leon County, Florida.〔(Florida Museum of Natural History: Ponyexpress )〕 ==Taxonomy== ''Parahippus leonensis'' was named by Sellards (1916). Its type specimen is FGS 5084. Its type locality is Griscom Plantation site, which is in a Miocene marine limestone in the Torreya Formation of Florida. It was recombined as Hippodon leonensis by Quinn (1955); it was considered a nomen dubium by Macdonald (1992).〔J. R. Macdonald. 1992. An analysis of the types of 147 named horse species and subspecies. Dakoterra 4:44-48〕
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