Ordovician (485.4 +/-1.9 Ma)

Back to Time Scale

Representation and status

Color CMYK
100/0/60/0
Rank
chronostratigraphic Period
Validity
Unit is in Use
Status
valid formal name

Nomenclature

Deutsch
Ordovicien
Français
Ordovicien
Italiano
Ordoviciano
English
Ordovician (485.4 +/-1.9 Ma)
Historical Variants
Silurique moyen p.p. (Mayer-Eymar 1888), Ordovizium, Ordoviz

Hierarchy and sequence

Subordinate units
Units at roof

  • Late Ordovician

    Rank
    chronostratigraphic Epoch
    Status
    informal term
    Show details

    • Hirnantian

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Late Ordovician
      Show details

    • Katian

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Late Ordovician
      Show details

    • Sandbian

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Late Ordovician
      Show details

  • Middle Ordovician

    Rank
    chronostratigraphic Epoch
    Status
    informal term
    Show details

    • Darriwilian

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Mittleres Ordovizium
      Show details

    • Dapingian

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Mittleres Ordovizium
      Show details

  • Early Ordovician

    Rank
    chronostratigraphic Epoch
    Status
    informal term
    Show details

    • Floian

      Name Origin

      Flo Parish, village in Västergötland, southern Sweden

      Rank
      chronostratigraphic Stage
      Status
      valid formal name
      Age
      Frühes Ordovizium
      Show details

    • Tremadocian

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Frühes Ordovizium
      Show details
Back to top