Many of the fossils are older than 24 million years; one of the deposits is thought to contain fossils up to 500 million years old, according to Prof. Mike Archer, the university's dean of science.
A saber-toothed kangaroo and a giant 10-foot-tall, 881-pound bird scientists nicknamed the"demon duck of doom"were among the largely unknown species uncovered in the dig, Archer told reporters Wednesday.
"They were galloping kangaroos, they didn't hop,"Archer said."They were also far more muscly than the kangaroos we know, with sharp saber-like incisors and powerful forelimbs to help rip and tear their prey."
One must remember that even 24 million years ago, the topography and environment in Australia were very different than today. That is especially true for 500 mya. I love it when this stuff is unearthed.