Neohipparion

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]

This prehistoric genus of hipparionin equid grew to lengths of up to 4.5 to 5 ft (1.4 to 1.5 m) long.^[6]

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]