Moa Coprolite (IMAGE) Proceedings of the National Academy of Sciences Caption This is a Moa coprolite partially excavated from the dry sediment, which buried and helped preserve it for centuries. Dart River Valley, New Zealand. Credit PNAS Usage Restrictions None License Licensed 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.