Tam Pà Ling deep excavation 2 (IMAGE) Macquarie University Caption The extensive excavation pit in Tam Pà Ling reaching from the cave floor down to ~7 m. The deepest pit is found at the rear close to the cave wall. Credit Copyright Vito Hernandez (Flinders University) Usage Restrictions For use with this story 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.