Diprotodon. Phascolonus gigas Procoptodon goliah (the giant short-faced kangaroo) is the largest-known kangaroo to have ever lived. It grew 2–3 metres (7–10 feet) tall, and weighed up to . Procoptodon rapha, P. pusio and P. texasensis Protemnodon, a genus of wallaby with four known giant species out of 11 known species Palorchestes parvus Ramsayia magna Sthenurus tindalei and S. atlas Thylacoleo carnifex (the marsupial lion) is the largest known carnivorous mammal to have ever lived in prehistoric Australia, and was of comparable size to female placental mammal lions and tigers, It had a catlike skull with large slicing pre-molars, a retractable thumb-claw and massive forelimbs. It was almost certainly carnivorous and a tree-dweller. Simosthenurus pales Phascolarctos stirtoni (the giant koala) was similar in structure to the modern koala (P. cinereus), but one-third larger. Phascolomys medius Lasiorhinus angustidens Thylacinus cynocephalus (the thylacine, Tasmanian wolf or Tasmanian tiger) Congruus congruus, a wallaby from Naracoorte Troposodon minor Sthenurus oreas Simosthenurus occidentalis (another sthenurine) was about as tall as a modern eastern grey kangaroo, but much more robust. It is one of the nine known species of leaf-eating kangaroos identified in fossils found in Naracoorte Caves National Park. Simothenurus brownei Propleopus oscillans (the giant rat-kangaroo) was a large (about rat-kangaroo with large shearing and stout grinding teeth that indicate it may have been an opportunistic omnivore able to eat invertebrates, vertebrates (possibly carrion), fruits, and soft leaves. Grew to about in height. Simothenurus maddocki Sthenurus andersoni Vombatus hacketti Macropus thor Macropus piltonensis Macropus rama Simothenurus gilli Warrendja wakefieldi, a wombat from Naracoorte Sarcophilus harrisii laniarius, a large subspecies of the Tasmanian devil. Thylacinus megiriani Birds Family Dromornithidae: this group of birds was more closely related to modern fowl than to modern ratites. Dromornis stirtoni, (Stirton's thunder bird) was a flightless bird tall that weighed about . It is one of the largest birds so far discovered. It inhabited subtropical open woodlands and was probably herbivorous with some omnivory. It was heavier than the moa and taller than the elephant birds. Bullockornis planei (the "demon duck of doom") was another huge member of the Dromornithidae. It was up to tall and weighed up to ; it was probably herbivorous with some omnivory. Genyornis newtoni (the mihirung) was related to Dromornis, and was about the height of an ostrich. It was the last survivor of the Dromornithidae. It had a large lower jaw and was probably