ammonites

Lancefieldian age/stage

General information
Lower boundary: after 488.3 Ma (based on Tremadocian)
Upper boundary: equal to 476.8 Ma (see scale)
Continent: Australia
See collections within this interval
See map of collections within this interval
Key correlations
Period: Ordovician
Epoch: Early/Lower Ordovician
Contained within
  • Paleozoic
  • Phanerozoic
    • Previous intervals
  • Cambrian
  • Merioneth
  • Dolgellian
  • Maentwrogian
  • Dolgelly
  • Ffestiniog
  • Maentwrog
  • Trempealeauan
  • Franconian
  • Dresbachian
  • Furongian
  • Ketyan
  • Yurakian
  • Tavgian
  • Payntonian
  • Taoyuanian
  • Millardan
  • Sunwaptan
  • Steptoean
  • Batyrbaian
  • Aksayan
  • Sakian
  • Merionethian
  • Niuchehean
    • Next interval
  • Bendigonian
    • Shares base with
  • Canadian, Cressagian, Datsonian, Deming, Demingian, Early/Lower Ordovician, Gasconadian, Hunjiang, Ibexian, Ichangian, Jefferson, Jeffersonian, Lianghekou, Mansian, Migneintian, Oeland, Ordovician, Pakerort, Skullrockian, Stairsian, Tremadoc, Tremadocian, Tulean, Ungurian, Varangu, Warendian, Yichang
    • Overlaps with
  • Yangtzi (478.6 to 460.9 Ma)
  • Arenig (478.6 to 466.0 Ma)
  • Klabava (478.6 to 466.0 Ma)
  • Cassinian (478.6 to 468.1 Ma)
  • Arenigian (478.6 to 468.1 Ma)
  • Dawan (478.6 to 468.1 Ma)
  • Daobaowan (478.6 to 468.1 Ma)
  • Ningkuo (478.6 to 468.1 Ma)
  • Yushanian (478.6 to 468.1 Ma)
  • Valhallan (478.6 to 468.1 Ma)
  • Blackhillsian (478.6 to 471.8 Ma)
  • Whitlandian (478.6 to 471.8 Ma)
  • Moridunian (478.6 to 471.8 Ma)
  • Billingen (478.6 to 471.8 Ma)
  • Latorpian (478.6 to 471.8 Ma)
  • late Early Ordovician (478.6 to 471.8 Ma)
  • Floian (478.6 to 471.8 Ma)
  • Latorp (484.5 to 471.8 Ma)
  • Hunneberg (484.5 to 471.8 Ma)
  • Olentian (501.0 to 484.5 Ma)
    • Appears in scales
  • Gradstein Cambrian-Middle Ordovician of Australasia (2004)
  • Webby 1998 Australasian Tremadocian and Arenigian Stages (1998)

    • Interval name: