A Dinosaur Dilemma
Nanotyrannus Tooth Hell Creek Formation, North Dakota 70-65 MYA Determination of a new dinosaur species is not an exact science. Paleontologists and laboratory scientists base the species of a given […]
Nanotyrannus Tooth Hell Creek Formation, North Dakota 70-65 MYA Determination of a new dinosaur species is not an exact science. Paleontologists and laboratory scientists base the species of a given […]