ammonites

Whiterockian epoch

General information
Lower boundary: equal to 471.8 Ma (based on Dapingian)
Upper boundary: equal to 457.5 Ma (see scale)
Continent: North America
See collections within this interval
See map of collections within this interval
Key correlations
Period: Ordovician
Contained within
  • Ordovician
  • Paleozoic
  • Phanerozoic
    • Previous intervals
  • Early/Lower Ordovician
  • Latorp
  • Ibexian
  • Blackhillsian
  • Tulean
  • Whitlandian
  • Moridunian
  • Billingen
  • Hunneberg
  • Latorpian
  • late Early Ordovician
  • Floian
    • Next intervals
  • Longvillian
  • Soudleyan
  • Harnagian
  • Bohdalec
  • Zahorany
  • Vinice
  • Oandu
  • Johvi
  • Sherman
  • Kirkfield
  • Rockland
  • Mohawkian
  • Burrellian
    • Contains
  • Abereiddian, Aluoja, Aseri, Chazyan, Darriwilian, Dobrotiva, Early/Lower Llandeilo, Early/Lower Llanvirn, Guniu, Hulo, Kunda, Lasnamagi, Late/Upper Llanvirn, Llandeilian, Llanvirn, Llanvirnian, Marmor, Oretanian, Sarka, Uhaku, Whiterock, Yapeenian, Zhejiangian
    • Shares base with
  • Dapingian, Fennian, Hunderum, Langevoja, Middle Ordovician, Rangerian, Saka, Vaana, Valaste, Volkhov, Volkhovian, early Middle Ordovician
    • Shares top with
  • Aurelucian, Black River, Chazy, Costonian, Dobrotivian, Liben, Volfreyan
    • Overlaps with
  • Late/Upper Ordovician (460.9 to 443.7 Ma)
  • Aijiashan (460.9 to 443.7 Ma)
  • Xiaoxita (460.9 to 443.7 Ma)
  • Shikou (460.9 to 443.7 Ma)
  • Caradoc (460.9 to 449.5 Ma)
  • Late/Upper Llandeilo (460.9 to 449.5 Ma)
  • Middle Llandeilo (460.9 to 449.5 Ma)
  • Kukruse (460.9 to 449.5 Ma)
  • Edenian (460.9 to 449.5 Ma)
  • Trentonian (460.9 to 449.5 Ma)
  • Wildernessian (460.9 to 449.5 Ma)
  • Ashbyan (460.9 to 449.5 Ma)
  • Chatfieldian (460.9 to 449.5 Ma)
  • Turinian (460.9 to 449.5 Ma)
  • Berounian (460.9 to 449.5 Ma)
  • Hanjiang (460.9 to 449.5 Ma)
  • Neichiashanian (460.9 to 449.5 Ma)
  • Haljala (460.9 to 449.5 Ma)
  • Caradocian (460.9 to 449.5 Ma)
  • Franklinian (460.9 to 449.5 Ma)
  • Kirkfieldian (460.9 to 449.5 Ma)
  • Rocklandian (460.9 to 449.5 Ma)
  • Shermanian (460.9 to 449.5 Ma)
  • Blackriveran (460.9 to 449.5 Ma)
  • Letna (460.9 to 455.8 Ma)
  • Keila (460.9 to 455.8 Ma)
  • Idavere (460.9 to 455.8 Ma)
  • early Late Ordovician (460.9 to 455.8 Ma)
  • Sandbian (460.9 to 455.8 Ma)
  • Gisbornian (460.9 to 456.1 Ma)
  • Viru (463.5 to 452.0 Ma)
  • Llandeilo (466.0 to 449.5 Ma)
  • Castlemainian (472.0 to 468.9 Ma)
  • Yangtzi (478.6 to 460.9 Ma)
  • Arenig (478.6 to 466.0 Ma)
  • Klabava (478.6 to 466.0 Ma)
  • Cassinian (478.6 to 468.1 Ma)
  • Arenigian (478.6 to 468.1 Ma)
  • Dawan (478.6 to 468.1 Ma)
  • Daobaowan (478.6 to 468.1 Ma)
  • Ningkuo (478.6 to 468.1 Ma)
  • Yushanian (478.6 to 468.1 Ma)
  • Valhallan (478.6 to 468.1 Ma)
  • Oeland (488.3 to 463.5 Ma)
  • Jefferson (488.3 to 468.1 Ma)
  • Hunjiang (488.3 to 468.1 Ma)
  • Canadian (488.3 to 468.1 Ma)
  • Jeffersonian (488.3 to 468.1 Ma)
    • Appears in scales
  • Webby et al. Ordovician of North America (2004)
  • Gradstein Cambro-Ordovician Series of Laurentia (2004)
  • Webby 1998 North American Series (1998)
  • Ross et al. 1982 North American Ordovician Series I (1982)

    • Interval name: