(ofCerithium (Thericium) preatratum Olsson & Harbison, 1953 †)Olsson, A. A. & Harbison, A. (1953). Pliocene Mollusca of southern Florida with special reference to those from North Saint Petersburg. <em>Monographs of the Academy of Natural Sciences of Philadelphia.</em> 8: 1-457, pls. 1-65.[details]
original description(ofCerithium (Thericium) preatratum Olsson & Harbison, 1953 †)Olsson, A. A. & Harbison, A. (1953). Pliocene Mollusca of southern Florida with special reference to those from North Saint Petersburg. <em>Monographs of the Academy of Natural Sciences of Philadelphia.</em> 8: 1-457, pls. 1-65.[details]