 The Dean's List with Janice Dean. Young scientists from North Dakota discovering a rare dinosaur fossil makes today's Dean's List. Eight-year-old Liam, his 11-year-old brother Jessen, and their 10-year-old cousin Caden Madsen were on adventure looking for fossils when they discovered something interesting in a rock formation, what looked to be some very large bones. The family took pictures and sent them to their dad's high school friend, Dr. Tyler Lyson, who works at the Denver Museum of Nature and Science.