ammonites

Undillan age/stage

General information
Lower boundary: equal to 505 Ma (see scale)
Upper boundary: equal to 504 Ma (see scale)
Continent: Australia
See collections within this interval
See map of collections within this interval
Key correlations
Period: Cambrian
Epoch: Middle Cambrian
10 million year bin: Cambrian 3
Contained within
  • St Davids
  • Menevian
  • Solvan
  • Clogau
  • Gamlan
  • Barmouth
  • Hafotty
  • Albertian
  • Middle Cambrian
  • Arcadian
  • Wulingian
  • Lincolnian
  • Marjumian
  • Cambrian
  • Paleozoic
  • Phanerozoic
    • Previous intervals
  • Amgan
  • Floran
  • Taijangian
  • Delamaran
  • Tyesaian
    • Next interval
  • Boomerangian
    • Shares base with
  • Ayusokkanian, Mayan, Wangcunian, Zhanarykian
    • Appears in scale
  • Gradstein Cambrian-Middle Ordovician of Australasia (2004)

    • Interval name: