>Thanks Chris, but I don't have access to science on line apart from
>abstracts. Is there no other mean to get that paper?
Try looking around at http://dinosaur.uchicago.edu/ , i seem to recall something like a cladogram against time being there, i might be wrong though.
Or you could get a general reference book that has listings of all the members of major groups and the stage of the formations they were found in (like "The Dinosauria" (Weishampel, Dodson & Osmolska)), and adapt the information in that.