ammonites

Uhaku age/stage

General information
Lower boundary: after 466 Ma (based on Llanvirn)
Upper boundary: equal to 460.9 Ma (based on Darriwilian)
Continent: Europe
See collections within this interval
See map of collections within this interval
Key correlations
Period: Ordovician
Epoch: Middle Ordovician
Stage: Darriwilian
10 million year bin: Ordovician 3
Contained within
  • Llanvirn
  • Early/Lower Llandeilo
  • Dobrotiva
  • Oretanian
  • Whiterockian
  • Ordovician
  • Paleozoic
  • Phanerozoic
    • Previous intervals
  • Arenig
  • Klabava
  • Fennian
  • Yapeenian
  • Valaste
  • Hunderum
    • Next intervals
  • Late/Upper Ordovician
  • Caradoc
  • Costonian
  • Late/Upper Llandeilo
  • Middle Llandeilo
  • Letna
  • Liben
  • Keila
  • Idavere
  • Kukruse
  • Edenian
  • Black River
  • Trentonian
  • Wildernessian
  • Ashbyan
  • Chatfieldian
  • Turinian
  • Aurelucian
  • Volfreyan
  • Dobrotivian
  • Berounian
  • Gisbornian
  • Aijiashan
  • Xiaoxita
  • Shikou
  • Hanjiang
  • Neichiashanian
  • Haljala
  • Caradocian
  • Franklinian
  • Kirkfieldian
  • Rocklandian
  • Shermanian
  • Blackriveran
  • early Late Ordovician
  • Sandbian
    • Shares base with
  • Chazy, Early/Lower Llanvirn, Llandeilo, Sarka
    • Shares top with
  • Aseri, Chazyan, Darriwilian, Guniu, Hulo, Lasnamagi, Late/Upper Llanvirn, Llanvirnian, Marmor, Middle Ordovician, Whiterock, Yangtzi, Zhejiangian
    • Overlaps with
  • Viru (463.5 to 452.0 Ma)
  • Llandeilian (466.0 to 460.9 Ma)
  • Abereiddian (466.0 to 460.9 Ma)
  • Aluoja (466.0 to 460.9 Ma)
  • Kunda (468.1 to 463.5 Ma)
  • Oeland (488.3 to 463.5 Ma)
    • Appears in scales
  • Gradstein Ordovician-Silurian of Baltica (2004)
  • Webby 1998 Baltic Stages (1998)
  • Harland Ordovician of Estonia (1990)

    • Interval name: