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Temporal range: Oligocene–Pleistocene
Ekaltadeta BW.jpg
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Diprotodontia
Family: Hypsiprymnodontidae
Subfamily: Propleopinae
Genus: Ekaltadeta
Archer & Flannery, 1985
  • E. ima
  • E. jamiemulvaneyi

Ekaltadeta is an extinct genus of giant marsupials related to modern rat-kangaroos.

They are hypothesized to have been either predatory, or omnivorous with a fondness for meat, based on their chewing teeth. This conclusion is based mainly on the size and shape of a large buzz-saw-shaped cheek-tooth, the adult third premolar, which is common to all Ekaltadeta. A few species actually did also have long predatory "fangs".

Fossils of the animals include two near complete skulls, and numerous upper and lower jaws.

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