What is "marsupial lion"

n. An extinct genus (taxlink Thylacoleo genus noshow=1) of carnivorous marsupial that lived in Australia during the Pleistocene.

The marsupial lion (Thylacoleo carnifex) is an extinct species of carnivorous marsupial mammal that lived in Australia from the early to the late Pleistocene (1,600,000–46,000 years ago). Despite its name, it is not closely related to the lion, but is a member of the order Diprotodontia.