Extinct Procoptodon Goliah Kangaroo Source: Getty Images The 'giant kangaroos' also known as Procoptodon died out 40 thousand years ago. Procoptodon goliah was mainly known for living in semi-arid ...
They included giants, such as Procoptodon goliah, which disappeared around 40,000 years ago. This huge stubby-faced species tipped the scales at 240 kilograms — that's two-and-a-half times the ...