''Pseudhipparion'' is an extinct

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of three-toed

horse The horse (''Equus ferus caballus'') is a domesticated, one-toed, hoofed mammal. It belongs to the taxonomic family Equidae and is one of two extant subspecies of ''Equus ferus''. The horse has evolved over the past 45 to 55 mi ...

endemic to

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during the

Miocene The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ...

. They were herding animals whose diet consisted of C3 plants. Fossils found in

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, and

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indicate that it was a lightweight horse, weighing up to 90 pounds (40 kilograms). In 2005, fossils were unearthed in

Oklahoma Oklahoma ( ; Choctaw language, Choctaw: , ) is a landlocked U.S. state, state in the South Central United States, South Central region of the United States. It borders Texas to the south and west, Kansas to the north, Missouri to the northea ...

. Seven species of ''Pseudhipparion'' are known from the fossil record which were very small, following the trend of Bergmann's rule.

References

{{Taxonbar, from=Q16947144 Miocene horses Miocene Perissodactyla Prehistoric placental genera Miocene mammals of North America Barstovian Clarendonian Hemphillian Fossil taxa described in 1904 Taxa named by Florentino Ameghino Hipparionini