quarter near rib (IMAGE) Texas A&M University Caption A close-up angle shows the bone point embedded in the mastodon's rib. Credit Center for the Study of the First Americans, Texas A&M University Usage Restrictions use with 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.