Abstract
Evolution places severe demands upon fossils used to support it. A fossil in an evolutionary sequence must have both the proper morphology (shape) to fit that sequence and an appropriate date to justify its position in that sequence. Since the morphology of a fossil cannot be changed, it is obvious that the dating is the more subjective element of the two items. Yet, accurate dating of fossils is so essential that the scientific respectability of evolution is contingent upon fossils having appropriate dates.