Cameroceras has become a "wastebasket taxon" in which large orthoconic endocerids such as Endoceras, Vaginoceras, and Meniscoceras were originally placed.
Hall, who named and described Endoceras in 1847 recognized C. trentonense specifically, but used Endoceras for other specimens of large endocerids from the Trenton Limestone of western New York state.