Type
Zone
Age range
104.9–104.1 Ma
Early Cretaceous
Albian
Mortoniceras fallax
Mortoniceras inflatum
Mortoniceras pricei
104.9104.8104.8104.8104.7104.7104.6104.5104.5104.5104.4104.3104.3104.3104.2104.2104.1