Fossil reconstruction (IMAGE) American Museum of Natural History Caption Reconstruction of Feredocodon chowi (right) and Dianoconodon youngi (left) Credit © Chuang Zhao Usage Restrictions Can be used with appropriate credit 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.