Low tide reveals rare dinosaur fossil
A team from the University of Alaska's Museum of the North has succeeded in excavating the fossil of a rare, ancient marine reptile from rock that's usually covered by the tide.
Photos were sent to the museum's earth sciences curator, who quickly determined that it was the back end of a little-known sea-going reptile from the age of the dinosaurs called a thalattosaur, Greek for "sea lizard."
The fossil was found in a formation estimated to be 220 million years old.
