Historical reference: Do not rely on this information. It is very old. About this collection
Diprotodon, the largest known marsupial, a giant extinct kangaroo found in Tertiary caves, lacustrine and fluviatile deposits, in Australia. Its fore limbs were longer and its hind limbs shorter in proportion than those of the living kangaroos, but it was probably six times as large as the largest existing species, its skull measuring three feet in length.