Thalattosaur's fossilized skeleton found in Alaska

What causes an "extreme low tide"?"Rare fossil of sea reptile found on Alaska beach"by Yereth RosenJuly 29th, 2011ReutersAlaska scientists have discovered the fossil of a rare, prehistoric marine reptile that is likely the most complete remnant of the creature ever found in North America.The nearly complete fossilized skeleton is of a thalattosaur, a long-tailed sea creature that plied warm,