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Streffordian age/stage

General information
Lower boundary: after 455.8 Ma (based on Katian)
Upper boundary: equal to 449.5 Ma (based on Caradoc)
Continent: Europe
See collections within this interval
See map of collections within this interval
Key correlations
Period: Ordovician
Epoch: Late/Upper Ordovician
Stage: middle Late Ordovician
10 million year bin: Ordovician 4
Overlaps with
  • Harju (452.0 to 443.7 Ma)
  • Vormsi (452.0 to 445.6 Ma)
  • Maysville (452.0 to 445.6 Ma)
  • Cincinnatian (452.5 to 443.7 Ma)
  • Oandu (457.5 to 452.0 Ma)
  • Mohawkian (457.5 to 452.5 Ma)
  • Viru (463.5 to 452.0 Ma)
  • Interval name: