Tarpan n. : A wild horse found in the region of the Caspian Sea.

Example:
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Taxonomy
Tarpan, species, Equus, horse, ferus, Equus ferus ferus, wild horse, free encyclopedia, Equus ferus, Equus caballus, Endangered Species, History, breeds, domestic horse, Extinction, extinct subspecies, 1930s, attempts.

Defination from the web:
Tarpan (Equus ferus ferus, also known as Eurasian wild horse) is an extinct subspecies of wild horse. ... Beginning in the 1930s, several attempts have been made to re-create the tarpan through selective breeding (see Breeding back) ...