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Neohipparion

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Neohipparion
Temporal range: Clarendonian-Hemphillian
~13.6–4.9 Ma
Skeleton of N. leptode at the Natural History Museum of Los Angeles County
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Perissodactyla
Family: Equidae
Subfamily: Equinae
Tribe: †Hipparionini
Genus: †Neohipparion
Gidley, 1903
Type species
Neohipparion affine
(Leidy, 1869)
Species
  • N. affine (Leidy, 1869)
  • N. eurystyle (Cope, 1893)
  • N. gidleyi Merriam, 1915
  • N. leptode Merriam, 1915
  • N. trampasense Edwards, 1982
Synonyms
  • Hesperohippus Dalquest, 1981

Neohipparion (Greek: "new" (neos), "pony" (hipparion)[1]) is an extinct genus of equid,[2] from the Neogene (Miocene to Pliocene) of North America and Central America.[3][4][5] This prehistoric species of equid grew up to lengths of 4.5 to 5 ft (1.4 to 1.5 m) long.[6] In Florida, Neohipparion lived in a wooded grassland savanna environment during the dry season but moved to a wet environment when it came time to mate. Speaking of mating, the average age of death for a newborn colt was 3.5 years, with a juvenile mortality rate of 64% during its first 2 years of existence. [7] Its diet consisted of grasses,⁣⁣ C3 and C4 plants.[8]

Restoration of N. affine
Mare and foal at Ashfall Fossil Beds

References

  1. ^ "Glossary. American Museum of Natural History". Archived from the original on 20 November 2021.
  2. ^ Clementz, M. T. (2012). "New insight from old bones: Stable isotope analysis of fossil mammals". Journal of Mammalogy. 93 (2): 368–380. doi:10.1644/11-MAMM-S-179.1.
  3. ^ "Neohipparion eurystyle". Florida Museum. 2017-03-31. Retrieved 2021-06-23.
  4. ^ "Neohipparion". Florida Museum. 2018-02-16. Retrieved 2021-06-23.
  5. ^ Stirton, R. A. (1955). "Two New Species of the Equid Genus Neohipparion from the Middle Pliocene, Chihuahua, Mexico". Journal of Paleontology. 29 (5): 886–902. ISSN 0022-3360.
  6. ^ Hulbert, Richard C. (July 1987). "Late Neogene Neohipparion (Mammalia, Equidae) from the Gulf Coastal Plain of Florida and Texas". Journal of Paleontology. 61 (4): 809–830. Bibcode:1987JPal...61..809H. doi:10.1017/s0022336000029152. ISSN 0022-3360. S2CID 130745896.
  7. ^ Hulbert, Richard C. (1982). "Population Dynamics of the Three-Toed Horse Neohipparion from the Late Miocene of Florida". Paleobiology. 8 (2): 159–167. doi:10.1017/s0094837300004504. ISSN 0094-8373.
  8. ^ Pérez-Crespo, Víctor Adrián; Carranza-Castañeda, Oscar; Arroyo-Cabrales, Joaquín; Morales-Puente, Pedro; Cienfuegos-Alvarado, Edith; Otero, Francisco J. (2017-04-01). "Diet and habitat of unique individuals of Dinohippus mexicanus and Neohipparion eurystyle (Equidae) from the late Hemphillian (Hh3) of Guanajuato and Jalisco, central Mexico: stable isotope studies". Revista Mexicana de Ciencias Geológicas. 34 (1): 38. doi:10.22201/cgeo.20072902e.2017.1.470. ISSN 2007-2902.
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