… Because of the potentially ancient age of the artifacts,  The Calico Early Man Site has always been highly controversial in the field of archaeology.   But new data revealed at other more recently excavated sites makes Calico's evidence more plausable. The complex geology of the surrounding area and the site itself makes dating by stratification techniques difficult if not impossible.  Future planning for thermoluminescent age dating on some of the older artifacts is in progress, but for now all …