From CCNews in the USA:
Fossils From Ancient Sea Monster Found in MontanaIt is an elasmosaur plesiosaur; see here.2006-11-03
A fossil-hunting trip to celebrate a son’s homecoming resulted in the recent discovery of an ancient sea monster in central Montana.
Believed to be approximately 70 million years old, its skull and lower jaw represent the first complete skull of a long-necked plesiosaur found in Montana, according to Montana State University experts.
The skull is said to be one of the best specimens of its kind in North America.
See also here.
