Leonardian age

286.1 - 273.01 Ma

The definition of this interval in the timescale Permian 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 bottom age has 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 8 timescales which overlap this one. show

This interval is used in the definition of 44 collections

A total of 3813 collections with 21143 occurrences lie within this time span

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International Chronostratigraphic TimescalePermian of North America
PermianLopingianChanghsingian251.902
Wuchiapingian254.14
GuadalupianCapitanianCapitanian259.51
WordianWordian264.28
RoadianRoadian266.9
CisuralianKungurianLeonardianCathedralian273.01
Hessian281.9 *
Artinskian283.5
WolfcampianLenoxian286.1 *
Sakmarian290.1
AsselianNealian293.52
298.9