In a message dated 97-06-14 10:25:22 EDT, pwillis@ozemail.com.au (Paul Willis) writes: > >Sauropods > >were giants for about 140 million years, a record matched by no other > >tetrapod group. > > > Umm, when did whales cease to be tetrapods? They haven't; but they also haven't been gigantic for anything like 140 million years! NP