^Garvie, Christopher L. The Molluscan Macrofauna of the Reklaw Formation, Marquez Member (Eocene, Lower Claibornian), in Texas. 1996.
Bernasconi, M. P., and E. Robba. "The Miocene species of the genus Spirotropis (Turridae, Gastropoda) in Europe." Boll. Mus. reg. Sci. nat. Torino 3.1 (1985): 203–220.
Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213
^Garvie, Christopher L. The Molluscan Macrofauna of the Reklaw Formation, Marquez Member (Eocene, Lower Claibornian), in Texas. 1996.
Bernasconi, M. P., and E. Robba. "The Miocene species of the genus Spirotropis (Turridae, Gastropoda) in Europe." Boll. Mus. reg. Sci. nat. Torino 3.1 (1985): 203–220.
Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213