323.4 - 315.2 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: Pennsylvanian epoch
• Carboniferous Subepochs: Early Pennsylvanian subepoch
• Carbo-Permian of the Russian Platform: Krasnopolyanian subage, Voznesenian subage, Melekessian subage, Severokeltmian subage, Cheremshanian subage, Prikamian subage
• Carboniferous of Western Europe: Namurian age, Marsdenian subage, Yeadonian subage, Westphalian age, Westphalian A subage, Kinderscoutian subage, Westphalian B subage, Chokierian subage, Alportian subage
• Carboniferous of China: Huashibanian age, Lousuan age, Dalaun age
• Carboniferous of North America: Atokan age, Morrowan age

This interval is used in the definition of 366 collections

A total of 1244 collections with 6924 occurrences lie within this time span