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Equus caballus, Horse: Taxonomy

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Taxonomy

Horse lineage

cellular organisms - Eukaryota - Fungi/Metazoa group - Metazoa - Eumetazoa - Bilateria - Coelomata - Deuterostomia - Chordata - Craniata - Vertebrata - Gnathostomata - Teleostomi - Euteleostomi - Sarcopterygii - Tetrapoda - Amniota - Mammalia - Theria - Eutheria - Laurasiatheria - Perissodactyla - Equidae - Equus - Equus subg. Equus - Equus caballus

Taxonomic place of Equus caballus between other Equidae

Horses (family Equidae), together with rhinoceroses (Rhinocerotidae) and tapirs (Tapiridae), belong to order Perissodactyla (odd-toed ungulates). The horses include only two genera Equus and Hippidion. Hippidions (Greek for "like a pony") that inhabited plains of South America 2.5-2 million years ago became extinct during the great late Pleistocene megafaunal extinction around 10,000 years BP (before present).

Tapir (Chicago zoo) Rhinoceros (Maryland zoo)
Tapir (Chicago zoo) Rhinoceros (Maryland zoo)

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