A U. of Conn. assistant professor of mechanical engineering has proposed a new way to define classes and families of geometric skeletons. That could be an interesting development in that geometric skeletons are fundamental concepts in practically all geometrically intensive areas of science and engineering, such as automated finite element meshing, shape manipulation, recognition and comparison, as well as dimensional reduction in design and analysis.
As yet there don't seem to be many details available, but U Conn. put out a press release on this development: