312.7 - 305.9 Ma

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

• F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view

The top and bottom ages have been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.

There are intervals in 5 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Kasimovian age, Moscovian age, Pennsylvanian epoch
• Carboniferous Subepochs: Middle Pennsylvanian subepoch, Late Pennsylvanian subepoch
• Carbo-Permian of the Russian Platform: Myachkovian subage, Podolskian subage, Kashirian subage, Krevyakinian subage
• Carboniferous of Western Europe: Westphalian D subage, Stephanian age, Westphalian C subage, Cantabrian subage, Westphalian age
• Carboniferous of China: Dalaun age

This interval is used in the definition of 572 collections

A total of 1687 collections with 10441 occurrences lie within this time span