201.4 - 188.9 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 5 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Hettangian age, Early Jurassic epoch, Pliensbachian age, Sinemurian age
• Mesozoic Subages: Early Pliensbachian subage, Late Hettangian subage, Late Sinemurian subage, Middle Hettangian subage, Late Pliensbachian subage, Early Sinemurian subage, Early Hettangian subage
• Ammonite Chrons of Northwest Europe: Margaritatus chron, Obtusum chron, Turneri chron, Raricostatum chron, Angulata chron, Ibex chron, Davoei chron, Liasicus chron, Planorbis chron, Oxynotum chron, Jamesoni chron, Bucklandi chron, Spinatum chron, Semicostatum chron
• Ammonite Chrons of North America: Franziceras chron, Whiteavesi chron, Imlayi chron, Coroniceras chron, Plesechioceras harbledownense chron, Arnioceras arnouldi chron, Euphyllites chron, Psiloceras chron, Canadensis chron, Pseudaetomoceras chron, Tetraspidoceras chron, Asteroceras varians chron
• Permian-Jurassic of New Zealand: Herangi epoch

This interval is used in the definition of 23 collections

A total of 3770 collections with 19679 occurrences lie within this time span