The Turonian is a stage of the Late Cretaceous Epoch. It spans the time between 93.9 and 89.8 Ma (million years ago).

The Turonien was definied by the French paleontologist Alcide d'Orbigny (1802 - 1857), who named it after the city of Tours in the French department of Indre-et-Loire.

Mantell's Iguanodon restoration
Cretaceous period
Lower/Early Cretaceous
Upper/Late Cretaceous
Berriasian | Valanginian | Hauterivian
Barremian | Aptian | Albian
Cenomanian | Turonian | Coniacian
Santonian | Campanian | Maastrichtian