Ammonoids from the Chadian Waulsortian mud-mounds of the Peak District (Derbyshire and Staffordshire) have been examined utilizing new collections and additional museum material. The genera Fascipericyclus, Ammonellipsites, Helicocyclus, Dzhaprakoceras, Eonomismoceras, Polaricyclus and Merocanites are present. One new species, Eonomismoceras wettonense sp. nov., is described. The independent status of Fascipericyclus fasciculatus and F. furcatus is confirmed.