Temporal range: Late Pliocene – Late Pleistocene
An artist's illustration of Thylacoleo carnifex
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Diprotodontia
Family: Thylacoleonidae
Genus: Thylacoleo
Owen, 1859
Referred species
  • Thylacoleo carnifex
    (Owen, 1859) (type)
  • Thylacoleo crassidentatus
  • Thylacoleo hilli

The Marsupial Lion (Thylacoleo carnifex; or meat cutting-marsupial-lion; or pouch-lion-butcher) was a large, carnivorous marsupial mammal that lived in Australia from the early to late Pleistocene Era (1,600,000–46,000 years ago). Despite its name, it wasn't part of the cat family, but was more closely related to wombats. It was one of the apex predators at its time and probably fed on early man.

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Although the marsupial lion had been first discovered in the mid 19th century, it's only been recently that we've found enough bones to make a clear visual of what it looked like. The marsupial lion was about the size of a modern day cougar, growing to be about 5-feet long from nose to tail, 2.5 feet tall at the shoulder, and weighing up to 285 lbs. In

What Killed the Mega Beasts Marsupial Lion

the biggest species, making it th

Marsupial Lion Skeleton

e biggest mamalian predator to have ever lived in Australia. Despite its rather small size, it had a very strong biteforce. Pound for pound, it had one of the strongest bites in history. It had sharp, slicing teeth that were designed to clamp down and, literally, butcher its preys' flesh. It spent most of its time in trees, like most modern marsupials, and would lie in wait until its prey, such as a large short-faced kangaroo or an ancestor of the wombat the size of a rhino, walked by and would jump down and ambush its prey, using its huge bite to kill its victims.  Another weapon it has is its thumb claw.


The marsupial lion lived in Australia, where it was mostly grassland with a few random trees. It shared its environment with its prey, with the giant short-faced kangaroo Procoptodon, the giant wombat Diprotodon, and the mega lizard Megalania, an apex predator rival, and even early


Jurassic World: The Game Marsupial Lion

man (which it probably preyed upon and rivaled for top predator). When it had died out, no other Australian mammal became a mega-carnivore as it had. There are rumors of it having survived, but just as in case with Megalania they are not confirmed.


Jurassic Park: Builder Marsupial Lion

In the Media

The marsupial lion was shown in one episode of Mega Beasts once in "The Great Ripper" where it was shown battling a Megalania and losing. It also appeared in the special What Killed the Mega Beasts, where it's shown to have hunted early man and talks about why it may have gone extinct. It also appears in Jurassic Park: Builder under the name "Marsupial Lion". It will appear in ARK: Survival Evolved. It also appears in Jurassic World: The Game under the name "Marsupial Lion".

Marsupial Lion - you've never seen anything like! Storyteller Media

Marsupial Lion - you've never seen anything like! Storyteller Media