Journal Index Authors Hubert C. Skinner Tulane Studies in Geology and Paleontology Earth Sciences Department Tulane University Emily H. Vokes Tulane Studies in Geology and Paleontology Earth Sciences Department Tulane University Elizabeth D. Seale Tulane Studies in Geology and Paleontology Earth Sciences Department Tulane University Downloads PDF Published 2017-04-28 Issue Vol. 16 No. 4 (1981) Section Back Page