Theriodictis is an extinct genus of small hypercarnivorous fox

Fox

Fox is a common name for many species of omnivorous mammals belonging to the Canidae family. Foxes are small to medium-sized canids , characterized by possessing a long narrow snout, and a bushy tail .Members of about 37 species are referred to as foxes, of which only 12 species actually belong to...

-like canid endemic to South America

South America

South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

 during the Pleistocene

Pleistocene

The Pleistocene is the epoch from 2,588,000 to 11,700 years BP that spans the world's recent period of repeated glaciations. The name pleistocene is derived from the Greek and ....

, living from 1.2 Ma-11,000 years ago and existing for approximately .
Prey is thought to have included ungulate

Ungulate

Ungulates are several groups of mammals, most of which use the tips of their toes, usually hoofed, to sustain their whole body weight while moving. They make up several orders of mammals, of which six to eight survive...

 camelid

Camelid

Camelids are members of the biological family Camelidae, the only living family in the suborder Tylopoda. Dromedaries, Bactrian Camels, llamas, alpacas, vicuñas, and guanacos are in this group....

s such as the llama

Llama

The llama is a South American camelid, widely used as a meat and pack animal by Andean cultures since pre-Hispanic times....

, cervids such as Epieurycerus and Antifer

Antifer

Antifer is an extinct genus of small herbivorous deer of ths family Cervidae endemic to South America during the Late Pliocene to Late Pleistocene, living from 3.6 Ma-11,000 years ago and existing for approximately...

, equids such as Equus

Equus (genus)

Equus is a genus of animals in the family Equidae that includes horses, donkeys, and zebras. Within Equidae, Equus is the only extant genus. Like Equidae more broadly, Equus has numerous extinct species known only from fossils. This article deals primarily with the extant species.The term equine...

and Hippidion

Hippidion

Hippidion was a Welsh pony-sized horse that lived in South America during the Pleistocene epoch, between two million and 10,000 years ago....

, Catagonus, giant rodents such as Neochoerus

Neochoerus

Neochoerus is an extinct genus of rodent closely related to the living capybara.-References:*...

, mesotherids such as the burrowing Mesotherium

Mesotherium

Mesotherium ,better known by its synonym, "Typotherium," is the type genus of Mesotheriidae, a long-lasting family of superficially rodent-like, burrowing notoungulates from South America. It was first named by Étienne Serres in 1867, and through further finds now contains four species, M....

, and giant armadillos such as Eutatus

Eutatus

Eutatus is an extinct genus of large insectivorous armadillo of the family Dasypodidae. It was endemic to South America during the middle to Late Pleistocene, living from 1.2 Ma-11,000 years ago and existing for approximately .-Taxonomy:...

, Propraopus and Pampatherium.

Fossil distribution

The fossil remains are confined to the Bolivia

Bolivia

Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...

, southern Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

, and Paraguay

Paraguay

Paraguay , officially the Republic of Paraguay , is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. Paraguay lies on both banks of the Paraguay River, which runs through the center of the...

.