Type
Zone
Age range
91.6–91.41 Ma
Late Cretaceous
Turonian
Scaphites warreni
Prionocyclus macombi
Prionocyclus hyatti
91.6091.5991.5891.5791.5691.5591.5491.5391.5291.5191.5091.4991.4891.4791.4691.4591.4491.4391.4291.41