1. Andersen, H. V. 1960. Geology of Sabine Parish. Louisiana Geological Survey Bulletin 34, 164 p.
2. Andersen, H. V. 1993. Geology of Natchitoches Parish. Louisiana Geological Survey Bulletin 44, 227 p.
3. Barry, J. O. and R. J. Leblanc. 1942. Lower Eocene faunal units of Louisiana. Louisiana Geological Survey Bulletin 23, 207 p.