In this book, a total of 103 fossil cone species are redescribed and presented on 30 figure plates, their time ranges are compared in a digram, and two new genera are introduced (Herndliconus, p. 60, and Tequestaconus, p. 62). To each genus a picture of the type species is shown, and, wherever necessary, pictures of important conchological features are added after every description. As opposed to the "Compendium of Fossil Shells of Florida", Petuch & Drolshage, 2011, the shells on the figure plates are shown in true proportion, to give a visual overview of the dimensions of the single species in comparison to their congeners - an important distinguishing feature in identifying them. As a contribution to, and a summary of our present knowledge of fossil cones of southern Florida, this book represents the culmination of over 40 years of field research by the senior author.