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Neohipparion
Extinct genus of mammals From Wikipedia, the free encyclopedia
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Neohipparion (Greek: "new" (neos), "pony" (hipparion)[1]) is an extinct genus of equid, from the Neogene (Miocene to Pliocene) of North America and Central America.[2][3][4]
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Distribution
Fossils of this horse have been found in Texas,[5][6] Kansas,[7][8] South Dakota,[9] Montana,[10] Nevada,[11] Alabama,[12] Florida,[6][13][14] Oregon,[15] and Mexico.[16][17][18]
Description
This prehistoric species of hipparionin equid grew to lengths of up to 4.5 to 5 ft (1.4 to 1.5 m) long.[6]
Palaeoecology
Reproduction
In Florida, Neohipparion lived in a savanna environment during the dry season, but moved to a wet environment when it came time to mate. 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. However, those that got past those for 2 years of life lived to be 8 years old before expiring.[19]
Diet
δ13C values of N. trampasense from the Love Bone Bed of Florida show it had a clear preference for foraging in open habitats.[14] δ13C values from N. eurystyle fossils found in Florida indicate that it fed almost exclusively on C4 grasses,[20][21] while fossils of the same species from central Mexico indicate a more varied diet that consisted of both C3 and C4 plants.[16]
References
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