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Richmond age/stage

General information
Lower boundary: after 449.5 Ma (based on Ashgill)
Upper boundary: equal to 445.6 Ma (based on Katian)
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 5
Contained within
  • Kralodvorian
  • Harju
  • Cincinnatian
  • Sherman
  • Late/Upper Ordovician
  • Aijiashan
  • Xiaoxita
  • Shikou
  • Ordovician
  • Paleozoic
  • Phanerozoic
    • Previous intervals
  • Caradoc
  • Llandeilo
  • Onnian
  • Late/Upper Llandeilo
  • Middle Llandeilo
  • Nabala
  • Johvi
  • Kukruse
  • Edenian
  • Trentonian
  • Wildernessian
  • Ashbyan
  • Maysvillian
  • Chatfieldian
  • Turinian
  • Streffordian
  • Berounian
  • Eastonian
  • Hanjiang
  • Neichiashanian
  • Haljala
  • Caradocian
  • Franklinian
  • Kirkfieldian
  • Rocklandian
  • Shermanian
  • Blackriveran
    • Next intervals
  • Hirnantian
  • Kosov
  • Porkuni
  • Gamach
  • Kosovian
  • late Late Ordovician
    • Shares base with
  • Ashgill, Ashgillian, Bolindian, Chientangkiangian, Gamachian, Qiantianjiang, Richmondian, Wufeng
    • Shares top with
  • Bohdalec, Katian, Maysville, Rawtheyan, Vormsi, middle Late Ordovician
    • Overlaps with
  • Cautleyan (449.5 to 445.6 Ma)
  • Pusgillian (449.5 to 445.6 Ma)
  • Kraluv Dvur (449.5 to 445.6 Ma)
  • Pirgu (449.5 to 445.6 Ma)
    • Appears in scale
  • Harland Ordovician of the Eastern USA (1990)

    • Interval name: