ammonites

Datsonian age/stage

General information
Lower boundary: after 488.3 Ma (based on Tremadocian)
Upper boundary: equal to 488.3 Ma (based on Tremadocian)
Continent: Australia
See collections within this interval
See map of collections within this interval
Key correlations
Period: Ordovician
Epoch: Early/Lower Ordovician
Stage: Tremadocian
10 million year bin: Ordovician 1
Contained within
  • Olentian
  • Paleozoic
  • Phanerozoic
    • Shares base with
  • Canadian, Cressagian, Deming, Demingian, Early/Lower Ordovician, Gasconadian, Hunjiang, Ibexian, Ichangian, Jefferson, Jeffersonian, Lancefieldian, Lianghekou, Migneintian, Oeland, Ordovician, Pakerort, Skullrockian, Stairsian, Tremadoc, Tremadocian, Tulean, Ungurian, Varangu, Warendian, Yichang
    • Shares top with
  • Aksayan, Batyrbaian, Cambrian, Dolgellian, Dolgelly, Dresbachian, Ffestiniog, Franconian, Furongian, Ketyan, Maentwrog, Maentwrogian, Merioneth, Merionethian, Millardan, Niuchehean, Payntonian, Sakian, Steptoean, Sunwaptan, Taoyuanian, Tavgian, Trempealeauan, Yurakian
    • Overlaps with
  • Mansian (488.3 to 488.3 Ma)
    • Appears in scale
  • Gradstein Cambrian-Middle Ordovician of Australasia (2004)

    • Interval name: