ammonites

Ashgill age/stage

General information
Lower boundary: equal to 449.5 Ma (see scale)
Upper boundary: equal to 443.7 Ma (based on Rhuddanian)
Continent: Europe
See collections within this interval
See map of collections within this interval
Key correlations
Period: Ordovician
Epoch: Late/Upper Ordovician
10 million year bin: Ordovician 5
Contained within
  • Sherman
  • 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
  • Silurian
  • Llandovery
  • Rhuddanian
  • Cowleigh Park
  • Litenschichten
  • Alexandrian
  • Raikkula
  • Juuru
  • Niagaran
  • Medina
  • Vtorye Utesy
    • Equivalent to
  • Bolindian, Chientangkiangian, Ashgillian
    • Contains
  • Gamachian, Qiantianjiang, Richmondian, Wufeng
    • Shares base with
  • Cautleyan, Kralodvorian, Kraluv Dvur, Pirgu, Pusgillian, Richmond
    • Shares top with
  • Aijiashan, Cincinnatian, Gamach, Harju, Hirnantian, Kosov, Kosovian, Late/Upper Ordovician, Ordovician, Porkuni, Shikou, Xiaoxita, late Late Ordovician
    • Overlaps with
  • Vormsi (452.0 to 445.6 Ma)
  • Maysville (452.0 to 445.6 Ma)
  • Rawtheyan (455.8 to 445.6 Ma)
  • middle Late Ordovician (455.8 to 445.6 Ma)
  • Katian (455.8 to 445.6 Ma)
  • Bohdalec (457.5 to 445.6 Ma)
    • Appears in scales
  • Webby et al. Ordovician of Britain (2004)
  • Gradstein Ordovician of Britain (2004)
  • Webby 1998 British Series (1998)
  • Harland 4: Epochs (1990)

    • Interval name: