Limestone caves (IMAGE) Flinders University Caption Credit: Limestone caves like the ones here are often where megafauna fossil remains are found (photo: CJA Bradshaw, Flinders University) Credit CJA Bradshaw, Flinders University. Usage Restrictions Credit: Limestone caves like the ones here are often where megafauna fossil remains are found (photo: CJA Bradshaw) 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.