221 - 217 Ma

The definition of this interval in the timescale Permian-Jurassic of New Zealand is taken from the following source:

• J. I. Raine, A. G. Beu, A. F. Boyes, H. J. Campbell, R. A. Cooper, J. S. Crampton, M. P. Crundwell, C. J. Hollis, and H. E. G. Morgans. 2015. Revised Calibration of the New Zealand Geological Timescale: NZGT2015/1. GNS Science Report 2012(39) view

There are intervals in 3 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Norian age, Late Triassic epoch
• Mesozoic Subages: Lacian subage
• Permian-Jurassic of New Zealand: Balfour epoch

This interval is used in the definition of 137 collections

A total of 132 collections with 171 occurrences lie within this time span