Last modified on June 28, 2009, at 03:55


Return to "Mammal" page.

Which evolutionary scientists frequently claim that mammals occurred in the Jurassic? A current theory [1] would have put their origins around 120 million years ago, which if I am not mistaken is in the Cretaceous?--Felix 17:37, 19 April 2007 (EDT)

  1. see for example