In article <199611141919.OAA11241@juliet.ucs.indiana.edu>, Stan Friesen <swf@ElSegundoCA.NCR.COM> wrote >No known dinosaurs lived in the sea. All were land animals. > Is there any generally agreed explanation why over their 160 MY reign dinosaurs did not venture to exploit the aquatic niches ? Gautam Majumdar gautam@majumdar.demon.co.uk