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Epihippus

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Extinct genus of horse

Epihippus
Temporal range: 46.2–38.0 Ma PreꞒ O S D C P T J K Pg N Early Uintan to Duchesnean
Illustration of Epihippus gracilis skull and teeth
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Perissodactyla
Family: Equidae
Genus: Epihippus
Marsh, 1877
Synonyms
  • Duchesnehippus

Epihippus is an extinct genus of the modern horse family Equidae that lived in the Eocene, from 46 to 38 million years ago.

Restoration of Epihippus (middle) and other animals of the Hancock Mammal Quarry

Epihippus is believed to have evolved from Orohippus, which continued the evolutionary trend of increasingly efficient grinding teeth. It had five grinding, low-crowned cheek teeth with well-formed crests. A late and partially recognized species of Epihippus, sometimes called Duchesnehippus intermedius, had teeth similar to Oligocene equids, although slightly less developed. The genus fed mostly on insects, berries and plant material.

Species

There are three species:

  • Epihippus gracilis
  • Epihippus intermedius
  • Epihippus uintensis

References

  1. ^ "Fossilworks: Epihippus". paleodb.org. Retrieved 8 May 2017.
  2. "Mindat.org". www.mindat.org. Retrieved 2022-10-02.
  3. "Fossilworks: Epihippus (Duchesnehippus)". Paleobiology Database. Retrieved 2022-10-02.
Perissodactyla
Perissodactyla
Incertae sedis
Anthracobunia
Anthracobunidae
Cambaytheriidae
Brontotheriidae
Equoidea
Equidae
Palaeotheriidae
Pachynolophinae
Palaeotheriinae
Hyopsodontidae?
Phenacodontidae?
Meniscotheriinae
Phenacodontinae
Tapiromorpha
    • See below↓
Palaeotherium medium

Hyopsodus sp.

Meniscotherium chamense
Tapiromorpha
Incertae sedis
Isectolophidae
Homogalaxinae
Isectolophinae
Ancylopoda
Ceratomorpha
Tapiroidea
Deperetellidae
Helaletidae
Tapiridae
Rhinocerotoidea
    • See below↓
Heptodon posticus Tapirus augustus
Rhinocerotoidea
Rhinocerotoidea sensu lato
Indolophidae
Rhinocerotoidea
sensu stricto
Hyrachyidae
Eggysodontidae
Hyracodontidae
Amynodontidae
Amynodontinae
Cadurcodontini
Metamynodontini
Paraceratheriidae
Forstercooperiinae
Paraceratheriinae
Rhinocerotidae
    • See below↓
Hyracodon nebraskensis Paraceratherium transouralicum
Rhinocerotidae
Rhinocerotidae
Aceratheriinae
Elasmotheriinae
Diceratheriini
Elasmotheriini
Rhinocerotinae
Teleoceratini
Rhinocerotina
Dicerorhinini
Dicerotini
Rhinocerotini
Coelodonta antiquatis Elasmotherium caucasicum
Extinct genera of Equidae (Horse family), arranged by subfamily
Basal forms
Anchitheriinae
Equinae
Hipparionini
Equini
Taxon identifiers
Epihippus


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