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Re: Mesozoic - the heyday of life?
>The observation by JSW that dinosaurs took a long time to become gigantic is
>incorrect. The first big sauropod, Vulcanodon, appeared in the very early
>Jurassic. Truly gigantic sauropods appeared by the Middle Jurassic. Sauropods
>were giants for about 140 million years, a record matched by no other
Umm, when did whales cease to be tetrapods?
Dr Paul M.A. Willis
Consulting Vertebrate Palaeontologist
Quinkana Pty Ltd