Gateway to the Paleobiology Database

late Early Ordovician age/stage

General information
Lower boundary: equal to 478.6 Ma (based on Floian)
Upper boundary: equal to 471.8 Ma (based on Floian)
Continent: global
See collections within this interval
See map of collections within this interval
Key correlations
Period: Ordovician
Epoch: Early/Lower Ordovician
10 million year bin: Ordovician 2
Equivalent to
Overlaps with
  • Castlemainian (472.0 to 468.9 Ma)
  • Lancefieldian (488.3 to 476.8 Ma)
  • Interval name: