PNG fossil (IMAGE) Flinders University Caption 3D render of the PNG kangaroo fossilised jaw bone used in the new Flinders University study Credit please credit I Kerr, Flinders University Usage Restrictions credit I Kerr, Flinders University License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.