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''Nannippus'' is an extinct genus of horse endemic to North America during the Miocene through Pliocene, ~13.3—3.3 Ma, living approximately . ''Nannippus'' lived as far south as Central Mexico (''N. peninsulatus'') to as far north as Canada (''N. lenticularis''), to California in the west, North Carolina (''N. lenticularis'') and Florida (''N. peninsulatus'') in the east. ==Species== *''N. aztecus'' (Mooser 1968).〔E. H. Sellards. 1916. Fossil vertebrates from Florida: A new Miocene fauna; new Pliocene species; the Pleistocene fauna. ''Florida State Geological Survey Annual Report'' 8:79-119〕 Widespread in Florida and also found in Texas, Oklahoma, and Chihuahua, became extinct ~11.2—5.7 Ma. *''N. beckensis'' (Dalquest and Donovan, 1973) found in Texas only and became extinct ~3.4 Ma. *''N. lenticularis'' (Cope, 1893). found in Alberta, Canada, North Carolina, Alabama, Nebraska, and Kansas becoming extinct ~13 Ma. *''N. montezumae'' (Leidy, 1882). *''N. morgani'' (Hulbert, 1993) restricted to Florida.〔R. C. Hulbert. 1993. Journal of Vertebrate Paleontology〕 Appears to become extinct ~8.6 Ma. *''N. peninsulatus'' (Cope, 1893) found in Florida, Texas, Oklahoma, New Mexico, Arizona, and Mexico becoming extinct ~3.3 Ma. *''N. parvulus'' (Marsh, 1868). *''N. westoni'' (Simpson, 1930) restricted to Florida.〔G. G. Simpson. 1930. ''Bulletin of the American Museum of Natural History'' 59(3)〕 Became extinct ~9.1—8.7 Ma. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nannippus」の詳細全文を読む スポンサード リンク
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