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

This interval is no longer in current use

This interval is used in the definition of 100 collections

A total of 5616 collections with 44405 occurrences lie within this time span