DIPROTODONTIA
Diprotodontia
The Diprotodontia are a large order of about 120 marsupial mammals including the kangaroos, wallabies, possums, koala, wombats, and many others. Extinct diprotodonts include the rhinoceros-sized Diprotodon, and Thylacoleo, the so-called "marsupial lion".The above text is a snippet from Wikipedia: Diprotodontia
and as such is available under the Creative Commons Attribution/Share-Alike License.