Petuch, E.J., 1988. A New Species of Trisecphora from the Miocene of Maryland, U.S.A. Bull. Paleomalacol. 1 (2), spring 1988: 22-36.
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Petuch, E.J., 1988. A New Giant Muricanthus from the Pliocene of Southern Florida, U.S.A. Bull. Paleomalacol. 1 (1), winter 1988: 17-21.
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Petuch, E.J., 1988. A New Ecphora from the Buckingham Formation at Sarasota, Florida, U.S.A. Bull. Paleomalacol. 1 (2), spring 1988: 36-39.
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Petuch, E.J., 1988. New Species of Ecphora and Ecphorine Thaidids from the Miocene of Chesapeake Bay, Maryland, U.S.A. Bull. Paleomalacol. 1 (1), winter [16 Mar] 1988: 1-16.
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Petuch, E.J., 1988[1989]. New gastropods from the Maryland Miocene. Bull. Paleomalacol. 1 (4), [12 Jan 1989]: 69-80.
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Petuch, E.J., 1992. New Ecphoras (Gastropoda: Thaididae: Ecphorinae) from the Calvert Formation of Maryland (Langhian Miocene). Nautilus 106 (2): 68-71. ≡
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