Anthracobunid Jaw (IMAGE) PLOS Caption Pictured here is a jaw of an anthracobunid. This jaw and other fossils of anthracobunids were recovered from 48 million year old sediments in Pakistan and India. The study showed the fossils were a new branch of the family tree of modern horses, tapirs, and rhinos. Credit David Waugh, Tobin Hieronymus. Copyright Cooper Lab, NEOMED. Usage Restrictions CC-BY 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.