Temporal range: Late Oligocene–Miocene
Archer & Flannery, 1985
Ekaltadeta is an extinct genus of giant marsupials related to modern rat-kangaroos. Ekaltadelta was present in what is today the Riversleigh formations in Northern Queensland from the Late Oligocene to the Miocene.
They are hypothesized to have been either exclusively carnivorous, 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 specimens 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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- "Fossilworks: Ekaltadeta". fossilworks.org. Retrieved 2017-08-22.
- "Killer Kangaroo". www.wakaleo.net. Retrieved 2017-08-22.
- "Mammals - Fossil Mammals - The Killer Rat-Kangaroo's Tooth". 2008-09-19. Retrieved 2017-08-22.