457.3 - 449.6 Ma

The definition of this interval in the timescale Ordovician of North America is taken from the following source:

• M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 view

There are intervals in 7 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Katian age, Late Ordovician epoch, Sandbian age
• Ordovician of Britain: Cheneyan age, Onnian age, Longvillian age, Woolstonian age, Burrellian age, Aurelucian age, Marshbrookian age, Harnagian age, Costonian age, Actonian age, Soudleyan age, Caradoc epoch, Streffordian age
• Ordovician of the Baltic: Harju epoch, Viru epoch, Keila age, Oandu age, Johvi age, Rakvere age, Vormsi age, Idavere age, Kukruse age, Haljala age, Nabala age
• Ordovician of Ibero-Bohemia: Berounian age, Kralodvorian age, Bohdalec age
• Ordovician of Australia: Gisbornian age, Eastonian age
• Ordovician of China: Shikou age, Hanjiang age, Xiaoxita age, Neichianshanian age
• Ordovician of North America: Shermanian age, Turinian age, Cincinnatian epoch, Rocklandian age, Maysvillian age, Wildernessian age, Trentonian age, Ashbyan age, Franklinian age, Blackriveran age, Chatfieldian age, Mohawkian epoch, Edenian age

This interval is no longer in current use

This interval is used in the definition of 56 collections

A total of 5269 collections with 42772 occurrences lie within this time span