The Marsupial Lion -LRB- Thylacoleo carnifex , the `` murderous -LRB- or ` meat-cutting ' -RRB- marsupial lion '' from thylakos - pouch , leo - lion , carnifex - murderer , tormentor , ` butcher ' -RRB- is an extinct species of carnivorous marsupial mammal that lived in LOCATION@1 from the early to the late Pleistocene -LRB- NUMBER@1 -- NUMBER@2 years ago -RRB- .

The Marsupial Lion , Thylacoleo carnifex , is an extinct species of carnivorous marsupial that lived in LOCATION@1 from the early to the late Pleistocene , from NUMBER@1 to NUMBER@3 years ago . The scientific name comes from the words thylakos - pouch , leo - lion , and carnifex - murderer , tormentor , or butcher .
