In a message dated 3/19/99 10:15:34 PM EST, tkeese1@gl.umbc.edu writes: << (As I've said to George before...) Then _Dimetrodon_ is a mammal, parasuchians are crocodylians, pareiasaurs are chelonians, etc., etc. >> IAnd as I may have said before, I have no problems with any of this.