Palaeontologists uncovered a strange new dinosaur a few years ago -- a crazy, patchwork quilt of a creature dubbed Chilesaurus diegosuarezi. Its bizarre and often conflicting characteristics defied classification, forcing scientists to make an educated guess about its place on the dino family tree. New research suggests the initial attempt to classify Chilesaurus was wrong, and that this animal represents an important transitional species within a different group of dinosaurs.