Age of Dimetrodon

[jpoling@magnus.acs.ohio-state.edu (Jeff Poling)]

   Anybody know when Dimetrodon limbatus was running around?  (Beginning and 
ending "dates" would be appreciated)

   I found several wonderful books on the Pelycosaurs, but while they had a 
wealth of anatomical information, they had no temporal information 
whatsoever....

** "A warp core breach is imminent?     ** "Those who trade a little freedom **
** This calls for the handyman's secret ** for a little security will soon   **
** weapon, duct tape." --- Red Green,   ** find that they have none of       **
** Chief Engineer, U.S.S. Voyager       ** either." --- Jeff Poling          **