Paul Callistus Sereno is a professor of paleontology at the University of Chicago and a National Geographic "explorer-in-residence" who has discovered several new dinosaur species on several continents, including at sites in Inner Mongolia, Argentina, Morocco and Niger. His most widely publicized discovery is that of a nearly complete specimen of 'Sarcosuchus imperator' — popularly known as SuperCroc — at Gadoufaoua in the Tenere desert of Niger. Wikipedia*
On the C-SPAN Networks:
Paul Sereno has one video in the C-SPAN Video Library; the first appearance was a 2000 Forum.