Past Pembina Fossil Dig photos Medium h2 Left Past Pembina Fossil Dig photos Paleontologists Dr. John Hoganson and Becky Barnes work with 80 million year old Mosasaur (giant sea lizard) bones in the Pembina Gorge area. Paleontologist Jeff Person adds acts as a “person for scale” on fossil jackets removed from the Pembina Gorge site. Mosasaur vertebra from the Pembina Gorge site. Previous Next Medium Learn More Prehistoric "Sea Monsters" of North Dakota A new addition to the Cretaceous seaway of ND Tusoteuthis: ND's Giant Squid
