Thylacoleo
| Thylacoleo Temporal range: late Pliocene—late Pleistocene
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|---|---|
| Skeletal diagram of T. carnifex (top) and restored musculature based on living marsupials (bottom) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Infraclass: | Marsupialia |
| Order: | Diprotodontia |
| Family: | †Thylacoleonidae |
| Genus: | †Thylacoleo Owen, 1859 |
| Type species | |
| †Thylacoleo carnifex Owen, 1859
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| Other species | |
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Thylacoleo ("pouch lion") is an extinct genus of carnivorous marsupials that lived in Australia from the late Pliocene to the Late Pleistocene (until around 40,000 years ago), often known as marsupial lions. They were the largest and last members of the family Thylacoleonidae, occupying the position of apex predator within Australian ecosystems. The largest and last species, Thylacoleo carnifex, had an estimated average weight of 101 to 130 kg (223 to 287 lb), approaching the weight of a modern lioness (Panthera leo).