The Monster was a vegetarian. But anything that came on its way trampled to death, say scientists today after the first complete skeleton of a prehistoric monster was found in Queensland , Australia.

Weighing 3 tons and stretching up to 14 ft, it is known as a Diprotodon and likened to a giant wombat, a Dailymail report said.

Its existence in the Australian Lands is estimated to be between 25,000 and two million years ago.

A fragment of bone from the remains of another diprotodon discovered in New South Wales paves way to assume that these creatures lived on the continent at the time of early Aborigines.

A small hole was found in the skull that was discovered. This suggests that the animal was brought down by a spear.

'We hope we will now be able to reconstruct the bones, put them into their original positions, to give us a pretty good idea of what these creatures looked like,' said Professor Michael Archer of the Australian Museum, who has travelled to a cattle station where the skeleton was found, according to the report.

Although scientists to a great extentent have successfully have painted what they believe would be the image of the diprotodon, the discovery of the complete skeleton will pave the way to reveal more of the creature's shape and size.

'What we're seeing here is the biggest marsupial (an animal that carries its young in a pouch) that ever lived in the world - a three-ton monster,' said Professor Archer.

'This here in Queensland was its last stand, judging by the relatively undamaged complete skeleton.'

Professor Archer said it was unusual for all the bones of ancient creatures to be found in one place, said

Diprotodons were widespread across Australia  during the time of indigenous people, which was around 50,000 years ago.

The heavily-built animals fed on grasses but they might not have been too intelligent - although having an oversized skull, it was filled with numerous air spaces.

Now palaeontologists are expecting to get through more clues about the creature, after the recent finding in Queensland.