The largest, a species called Procoptodon goliah, weighed about 530 pounds (240 kg), stood 6-1/2 feet (two meters) tall and was 10 feet long (three meters). The study found important anatomical ...

The high-crowned teeth bore multiple ridges (crenellations) that would have helped pulverise coarse plant matter. Procoptodon goliah inhabited arid Central Australian scrublands and plains.

One of these was a giant, leaf-munching kangaroo called Procoptodon goliah that weighed hundreds of kilograms, possibly walked like a dinosaur, and went extinct about 15,000 years ago. Then there ...

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