Cormohipparion

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Cormohipparion Fossil range: middle Miocene to Pliocene
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Perissodactyla Family: Equidae Subfamily: Equinae Genus: †Cormohipparion Skinner & MacFadden, 1977
Type species
†Hipparion occidentale
Subgenera and Species
†Cormohipparion †C. (C.) fricki †C. (C.) goorisi †C. (C.) johnsoni †C. (C.) matthewi †C. (C.) merriami †C. (C.) occidentale †C. (C.) quinni †C. (C.) skinneri †Notiocradohipparion †C. (N.) plicatile †C. (N.) ingenuum †C. (N.) emsliei unassigned †C. sinapensis

Cormohipparion is a genus of extinct horse from the Miocene and Pliocene. Cormohipparion arose in North America, along with related genera of three-toed horses (Nannippus, Neohipparion, Pseudhipparion). Approximately 11 ma, a species of Cormohipparion, possibly C. fricki or a close relative, migrated across Beringia to reach the Old World. At the time, advanced horses were absent from the Old World, and Cormohipparion gave rise to a radiation of horses placed in several genera (Cremohipparion, Eurygnathohippus, Hipparion, Hippotherium, Plesiohipparion, Proboscidipparion). A species Cormohipparion itself (C. sinapensis) may occur in Turkey, but this is disputed.

[edit] References

• Woodburne, M.O. (2007). "Phyletic diversification Of the Cormohipparion occidentale complex (Mammalia; Perissodactyla, Equidae), late Miocene, North America, and the origin of the Old World Hippotherium datum". Bulletin of the American Museum of Natural History 306 (1): 1-138. doi:10.1206/0003-0090(2007)306[1:PDOTCO2.0.CO]. 

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