ammonites

Amgan age/stage

General information
Lower boundary: equal to 513 Ma (based on Middle Cambrian)
Upper boundary: equal to 505 Ma (based on Floran)
Continent: global
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
  • Cambrian
  • Paleozoic
  • Phanerozoic
    • Previous intervals
  • Caerfai
  • Lenian
  • Rhinog
  • Waucoban
  • Toyonian
  • Botomian
  • Early/Lower Cambrian
  • Ordian
  • Duyunian
  • Nangaoian
  • Dyeran
  • Branchian
  • Qiandongian
    • Next intervals
  • Mayan
  • Undillan
  • Wangcunian
  • Ayusokkanian
  • Zhanarykian
    • Equivalent to
  • Taijangian, Tyesaian
    • Contains
  • Delamaran
    • Shares base with
  • Albertian, Arcadian, Barmouth, Clogau, Gamlan, Hafotty, Lincolnian, Marjumian, Menevian, Middle Cambrian, Solvan, St Davids, Templetonian, Wulingian
    • Shares top with
  • Floran
    • Appears in scale
  • Gradstein Cambrian of Siberia (2004)

    • Interval name: