Scientists have speculated that its bite force was equivalent to that of a 551 pound lion!
Thylacoleo Scientific Classification
Thylacoleo Physical Characteristics
223 – 287 pounds
Thylacoleo Distribition

The thylacoleo was a genus of animals which contained the biggest predator that ever before stayed in Australia and had one of the most effective bite of any kind of animal, whether extant or extinct.

Thylacoleo Summary and Dimension

Paleontologists think that the biggest species of this animal, T. carnifex loafed 30 inches high at the shoulder and 59 inches long and considered regarding 223 to 287 extra pounds. Though that would certainly have made the animal regarding the very same dimension as a lioness or a jaguar, researchers have actually guessed that its bite pressure amounted that of a 551 extra pound lion, and modern-day lions hardly ever expand that large. Surprisingly, the thylacoleo, likewise called the marsupial lion was not truly a lion yet a marsupial like a kangaroo or an opossum. This suggested that its young were birthed at an extremely onset and created in their mom’s bag. Still, thylacoleo had some catlike functions. They consisted of:

  • Retracting claws like a cat
  • A brief head that permitted it to have more powerful attacking muscle mass in its jaw.
  • A capability to climb up trees like lots of cats. It might have also stayed in the trees.

Thylacoleo likewise had thumbs that were rather opposable. These thumbs birthed big claws. The animal made use of these claws to capture their target and after that devitalize it. It really did not have a tail like a cat or a lion yet one that was most like the tail of a kangaroo. It was composed of effective bones called chevrons that sustained the animal like a tripod when it based on its back legs. This left its forelegs totally free to get hold of and lower at target.

The thylacoleo likewise had actually really specialized teeth, specifically its cheek teeth. These teeth had actually advanced right into customized shearing blades, and they signed up with top incisors that were huge and serrated and almost straight reduced incisors. These teeth advanced at the expenditure of the animal’s pooches and back molars, which were either a lot smaller sized or entirely missing.

Regardless of its terrifying devices, thylacoleo was not a quick jogger and possibly assailed its target, perhaps by falling on it from a tree or breaking out of a shrub when an animal came within striking range. Paleontologists likewise think that this searching strategy possibly resulted in the animal having places or red stripes, which would certainly have concealed it. The 2nd and 3rd toes on its back feet were likewise merged, which is a quality of animals discovered in its order, Diprotodontia

thylacoleo illustration
The thylacoleo had a brief head that permitted it to have more powerful attacking muscle mass in its jaw.Arip Apandi/Shutterstock. com

Beginning of Its Name

Thylacoleo implies “bag lion.” The name comes since the animal was both a marsupial and appeared like a lion in its stamina, ferocity, and searching expertise. The order it came from, Diprotodontia, is Greek for “2 ahead teeth,” and explains the animal’s teeth.

Diet: What Did the Thylacoleo Eat?

The thylacoleo was a predator and absolutely a pinnacle killer any place it was discovered. It is thought that a person of its most preferred target animals was diprotodon, an additional marsupial that is currently extinct. Diprotodon was the biggest marsupial that ever before lived, and was the dimension of a hippopotamus. Its size was almost 10 feet, and it considered over 3 heaps. Yet, the thylacoleo was effective adequate to take it down. Surprisingly, diprotodon came from the very same order as the thylacoleo and its head, however a lot bigger, looks quite like the head of thylacoleo. Nonetheless, diprotodon was an herbivore, and its closest living family members seem modern-day wombats.

An additional animal preferred by thylacoleo was Palorchestes, an additional huge participant of the Diprotodontia order. Like diprotodon, it was a 4- legged herbivore. Some paleontologists think that this animal had a brief trunk that assisted it search from trees. Thylacoleo likewise took advantage of Procoptodon and Sthenurus, both large kangaroos. Though Procoptodon dominated 6.5 feet high, Sthenurus loafed 10 feet. Thylacoleo appeared not to be experienced at capturing little target, so it concentrated on these huge animals. It’s likewise thought to have actually been a scavenger and allowed and vibrant adequate to drive various other scavengers far from a carcass.

Environment: When and Where It lived

The marsupial lion varied over a lot of Australia throughout the late Pliocene and much of the Pleistocene dates, which was 1.6 million to 11,700 years earlier. Maybe discovered in timbers, scrublands and semi- desert locations that had bodies of water.

Dangers And Predators

Extremely couple of animals endangered the awesome grown-up thylacoleo, yet it did need to take on some honestly distressing next-door neighbors. Among them was the Quinkana, a crocodile that varied from 6.5 to almost 20 feet long. In addition, this crocodile was earthbound going by its lengthy legs and its blade- like, serrated teeth. These teeth were suggested to cut right into a target animal and create it to hemorrhage to fatality instead of dragging it undersea and sinking it. An additional possible risk was a goanna called Varanus priscus, orMegalania This lizard varied from 14.7 to 23 feet long and might expand also bigger. The thylacoleo likewise needed to emulate a 16 to 20- foot- lengthy snake called the Wonambi naracoortensis

Obviously, the greatest hazards thylacoleo at some point needed to deal with were humans, that got here in Australia regarding 60,000 years earlier. Also if humans handled to avoid this killer, their techniques of searching and farming substantially lowered the variety of the marsupial lion’s target animals. Some likewise think that environment adjustment taxed the thylacoleo and the various other Australian megafauna, yet it was probably humans that did them ultimately.

Discoveries and Fossils: Where It was Located

Some individuals think that the very first thylacoleo fossils were found in the 1830s in New South Wales, Australia by Thomas Mitchell, yet the animal was very first defined in 1859 by the British biologist and paleontologist Sir Richard Owen. These fossils were little bits and items of the animal, and component of a head of T. carnifex was found in 1843 by William Adeney. He discovered component of the nose of the very same animal regarding 33 years later on in Lake Colongulac in southeastern Australia.

Ever since, lots of fossilized remains of thylacoleo have actually been found around Australia, yet the very first practically full thylacoleo skeletal system had not been discovered till 1966. A few of the much more significant were 8 almost full skeletal systems that were discovered in a give in Nullarbor Level in southerly Australia. These animals evidently failed an abyss right into the cavern. Some were eliminated outright by the autumn, while others endured yet could not go out and deprived to fatality. These fossils are currently discovered in The Australian Gallery.

Termination: When Did It Pass away Out?

Paleontologists think that the major reason for the thylacoleo’s termination was human task, yet the environment had actually been drying in the animal’s array for thousands of countless years. This could have triggered a reduction in thylacoleo’s target, yet it’s thought the genuine wrongdoer was humans just searching the animal to termination around 30,000 years earlier in addition to searching its target. Surprisingly, nothing else huge meat-eating marsupial has actually loaded the specific niche of the thylacoleo in Australia.

Similar Animals to the Thylacoleo

The Pleistocene date appears to have actually been a time for big and honestly terrifying animals, consisting of animals. Thylacoleo was an instead special animal, being a pinnacle killer in addition to a marsupial and perhaps came down from an herbivore. Yet various other animals that might have been rather like it consist of:

  • Propleopus oscillans This is the Pleistocene date large rat kangaroo of Australia. It expanded to in between 5 and 10 feet in elevation, considered 150 extra pounds and was an omnivore, with teeth made to tear and grind.
  • Homotherium This is the saber tooth cat that stayed in much of the globe, conserve Asia and Australia throughout the Pliocene and Pleistocene dates.
  • Thylacinus megiriani This was likewise a meat-eating, aggressive marsupial. It strolled on all fours and resembled a dog with an incredibly lengthy nose. It considered in between 85.3 and 126 extra pounds. Fossils have actually been discovered in Australia‘s North Area.
  • Panthera spelaea This is the Eurasian cave lion, which stood regarding 4 feet high at the shoulder, was 7 feet long without the tail, and might consider as high as 747 extra pounds.


  1. Wikipedia, Available here:
  2. Australian Museum, Available here:
  3. Prehistoric Wildlife, Available here:
  4. Britannica, Available here:

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