Megalolamna paradoxodon Tooth (image) DePaul University Share Print E-Mail Caption Megalolamna paradoxodon, which measured roughly 13 feet in length, is the name of new extinct shark described by an international research team that lived during the early Miocene epoch about 20 million years ago. Megalolamna paradoxodon had grasping-type front teeth and cutting-type rear teeth likely used to seize and slice medium-sized fish and it lived in the same ancient oceans megatoothed sharks inhabited. Credit Kenshu Shimada Usage Restrictions With proper credit Share Print E-Mail 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.