419.62 - 393.47 Ma

The definition of this interval in the timescale International Chronostratigraphic Timescale is taken from the following source:

• K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2024. The ICS International Chronostratigraphic Chart v2024/12. International Commission on Stratigraphy view

There are intervals in 6 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Pragian age, Lochkovian age, Emsian age
• Devonian Subages: Middle Lochkovian subage, Early Emsian subage, Late Emsian subage, Early Lochkovian subage, Late Lochkovian subage
• Devonian of France: Couvinien age, Gedinnine age, Coblencien age
• Devonian of Germany: Siegen age
• Devonian of Czechoslovakia: Daleje age, Zlichovian age
• Devonian of Eastern North America: Helderbergian age, Deer Parkian age, Sawkillian age

This interval is used in the definition of 330 collections

A total of 4688 collections with 34735 occurrences lie within this time span