Dinosaurs (Version 2)

Most come from just the period lasting from 75 million to 70 million years ago, some five million years before the famous mass the demise of the planet`s dinosaurs. | No one has yet excavated a complete dinosaur skeleton from this site near Colville River or anywhere else in Alaska. | All eight-date to the Cretaceous period which lasted from 145 million to 60 million years ago. | Nevertheless, paleontologists have been able to identify from partial skeletons, isolated bones, teeth and fossil footprints, eight types of dinosaurs that lived as contemporaries in the far north.