Alberto and David, I recall seeing that a new model is being considered, based solely on clades and without the rigid hierarchical structures of ...., order, suborder, superfamily, family, subfamily, ...., etc. We (or at least, I) will have a hard time doing without names for Orders, Families, and so forth. This system should however be better able to reflect what evolution has given us. Jim Shields At 12:07 PM 6/15/2011 +0000, Alberto wrote: >David, a new model is in evolution all the time. But, splitting a family >into multitude of genera is not new. > ************************************************* Jim Shields USDA Zone 5 P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Tel. ++1-317-867-3344