Ehrlich, Robert. Some ostracods from the Pennington formation of Alabama. - University, Ala., 1964. - 15 p. illus., map. 23 cm. - Alabama. Geological Survey. Circular 29 . Bibliography: p. 13. LCCN: gs 65000213 Subjects--Topical Terms: Ostracoda, FossilPaleontology--Mississippian.Paleontology--Alabama LC Class. No.: QE817.O8 / E4