ammonites

Ururoan age/stage

General information
Lower boundary: equal to 189.6 Ma (based on Pliensbachian)
Upper boundary: equal to 175.6 Ma (based on Herangi)
Continent: New Zealand
See collections within this interval
See map of collections within this interval
Key correlations
Period: Jurassic
Epoch: Early/Lower Jurassic
Contained within
  • Jurassic
  • Mesozoic
  • Sherman
  • Phanerozoic
    • Previous intervals
  • Sinemurian
  • Late/Upper Sinemurian
  • Early/Lower Sinemurian
  • Arnioceras arnouldi
  • Raricostatum
  • Oxynotum
  • Obtusum
  • Turneri
  • Semicostatum
  • Bucklandi
  • Aratauran
    • Next intervals
  • Middle Jurassic
  • Aalenian
  • Howelli
  • Scissum
  • Westermanni
  • Concavum
  • Murchisonae
  • Opalinum
  • Late/Upper Aalenian
  • Middle Aalenian
  • Early/Lower Aalenian
  • Kawhia
  • Temaikan
    • Contains
  • Carlottense, Early/Lower Toarcian, Falciferum, Freboldi, Kanense, Kunae, Planulata, Tenuicostatum
    • Shares base with
  • Davoei, Early/Lower Pliensbachian, Ibex, Imlayi, Jamesoni, Late/Upper Pliensbachian, Margaritatus, Pliensbachian, Spinatum, Whiteavesi
    • Shares top with
  • Bifrons, Crassicosta, Early/Lower Jurassic, Herangi, Hillebrandti, Late/Upper Toarcian, Levesquei, Middle Toarcian, Thouarsense, Toarcian, Variabilis, Yakounensis
    • Overlaps with
  • Tetraspidoceras (190.7 to 186.7 Ma)
    • Appears in scale
  • New Zealand Permian-Jurassic Stages (2004)

    • Interval name: