Type
Zone
Age range
107–104.9 Ma
Early Cretaceous
Albian
Mortoniceras inflatum
Mortoniceras pricei
Diploceras cristatum
107.0106.9106.8106.7106.6106.5106.4106.3106.2106.1106.0105.9105.8105.7105.6105.5105.4105.3105.2105.1105.0104.9