Trisha Shetty

Equidae

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Kingdom  Animalia
Order  Perissodactyla
Family  Equidae Gray, 1821
Lifespan  Horse: 25 – 30 years
Mass  Horse: 380 – 1,000 kg
Height  Horse: 1.4 – 1.8 m
Phylum  Chordata
Suborder  Hippomorpha
Scientific name  Equidae
Gestation period  Horse: 11 – 12 months
Daily sleep  Horse: 2.9 hours
Equidae wwwequidaefeedcomimages062014image002jpg
Lower classifications  Horse, Equus, Mule, Wild horse, Onager

Zebra cebras animal equus burchellii equus zebra equidae zoologico


Equidae (sometimes known as the horse family) is the taxonomic family of horses and related animals, including the extant horses, donkeys, and zebras, and many other species known only from fossils. All extant species are in the genus Equus. Equidae belongs to the order Perissodactyla, which includes the extant tapirs and rhinoceros, and several extinct families.

Contents

Equidae Hypohippus Extinct Equidae The Equinest

The term equid refers to any member of this family, including any equine.

Equidae tribute


Evolution

Equidae Evolution of Equidae by TPEKC on DeviantArt

The oldest known fossils assigned to Equidae date from the early Eocene, 54 million years ago. They used to be assigned to the genus Hyracotherium, but the type species of that genus now is regarded to be not a member of this family. The other species have been split off into different genera. These early Equidae were fox-sized animals with three toes on the hind feet, and four on the front feet. They were herbivorous browsers on relatively soft plants, and already adapted for running. The complexity of their brains suggest that they already were alert and intelligent animals. Later species reduced the number of toes, and developed teeth more suited for grinding up grasses and other tough plant food.

Equidae Equidae Wikipedia

The family became relatively diverse during the Miocene, with many new species appearing. By this time, equids were more truly horse-like, having developed the typical body shape of the modern animals. Many of these species bore the main weight of their bodies on their central, third, toe, with the others becoming reduced, and barely touching the ground, if at all. The sole surviving genus, Equus, had evolved by the early Pleistocene, and spread rapidly through the world.

Classification

Equidae EQUIDAE equus ferus caballus YouTube
  • Order Perissodactyla (In addition to Equidae, Perissodactyla includes four species of tapir in a single genus, as well as five living species (belonging to four genera) of rhinoceros.) † indicates extinct taxa.
  • Family Equidae
  • Genus †Epihippus
  • Genus †Haplohippus
  • Genus †Heptaconodon
  • Genus †Eohippus
  • Genus †Minippus
  • Genus †Orohippus
  • Genus †Pliolophus
  • Genus †Protorohippus
  • Genus †Sifrhippus
  • Genus †Xenicohippus
  • Genus †Eurohippus
  • Genus †Propalaeotherium
  • Subfamily †Anchitheriinae
  • Genus †Anchitherium
  • Genus †Archaeohippus
  • Genus †Desmatippus
  • Genus †Hypohippus
  • Genus †Kalobatippus
  • Genus †Megahippus
  • Genus †Mesohippus
  • Genus †Miohippus
  • Genus †Parahippus
  • Genus †Sinohippus
  • Subfamily Equinae
  • Genus †Merychippus
  • Genus †Scaphohippus
  • Genus †Acritohippus
  • Tribe †Hipparionini
  • Genus †Eurygnathohippus
  • Genus †Hipparion
  • Genus †Hippotherium
  • Genus †Nannippus
  • Genus †Neohipparion
  • Genus †Proboscidipparion
  • Genus †Pseudhipparion
  • Tribe Equini
  • Genus †Astrohippus
  • Genus †Calippus
  • Genus †Dinohippus
  • Genus Equus (22 species, 7 extant)
  • Genus †Hippidion
  • Genus †Onohippidium
  • Genus †Pliohippus
  • Genus †Protohippus
  • Genus †Heteropliohippus
  • Genus †Parapliohippus

  • Equidae Equus przewalskii Equidae image 33800 at PlantSystematicsorg
    Equidae SUPER ANIMAL Equidae

    References

    Equidae Wikipedia


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