Eleven new genera of gastropods from the Upper Cretaceous Ripley and Owl Creek formations of the Gulf Coastal Plain are described. These are as follows: Striaticostatum and Aciculiscala of the Epitoniacea; Mitridomus, Paleofusimitra and Myobarbum of the Volutacea; Lacrimiforma of the Pyramidellacea; Parietiplicatum and Scobinidola of the Acteonacea; Cylindrotruncatum and Zikkuratia of the Philinacea; Sulcoretusa of the Bullacea.

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