192.9 - 184.2 Ma

The definition of this interval in the timescale Ammonite Chrons of Northwest Europe is taken from the following source:

• J. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 view

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

• International Chronostratigraphic Timescale: Pliensbachian age, Early Jurassic epoch
• Mesozoic Subages: Early Pliensbachian subage, Late Pliensbachian subage
• Ammonite Chrons of Northwest Europe: Spinatum chron, Davoei chron, Margaritatus chron, Ibex chron
• Ammonite Chrons of North America: Kunae chron, Whiteavesi chron, Plesechioceras harbledownense chron, Canadensis chron, Arnioceras arnouldi chron, Freboldi chron, Coroniceras chron, Asteroceras varians chron, Imlayi chron, Tetraspidoceras chron
• Permian-Jurassic of New Zealand: Herangi epoch, Aratauran age, Ururoan age

This interval is used in the definition of 586 collections

A total of 4944 collections with 23784 occurrences lie within this time span