Devonian (419.2 +/-3.2 Ma)

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Representation and status

Color CMYK
20 / 40 / 75 / 0 (Commission for the Geological Map of the World)
Color RGB
R: 203 G: 140 B: 55
Rank
chronostratigraphic Period
Validity
Unit is in Use
Status
valid formal name

Nomenclature

Deutsch
Dévonien
Français
Dévonien
Italiano
Devoniano
English
Devonian (419.2 +/-3.2 Ma)
Historical Variants
période dévonique (Renevier 1897), Devonium, Devon

Hierarchy and sequence

Subordinate units
Units at roof

  • Late Devonien (382.7 +/-1.6 Ma)

    Rank
    chronostratigraphic Epoch
    Status
    informal term
    Age
    Frasnian
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    • Famennian (372.2 +/-1.6 Ma)

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Late Devonian
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    • Frasnian (382.7 +/-1.6 Ma)

      Name Origin

      Named after the town of Frasne (France), near Tournay.

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Late Devonian
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  • Middle Devonian (393.3 +/-1.2 Ma)

    Rank
    chronostratigraphic Epoch
    Status
    valid
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    • Givetian (387.7 +/-0.8 Ma)

      Name Origin

      Named after the town of Givet (Ardennes, France).

      Rank
      chronostratigraphic Stage
      Status
      valid formal name
      In short
      Second stage of the Middle Devonian, originally defined based on the Givet Limestone.
      Age
      Mittleres Devon
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    • Eifelian (393.3 +/-1.2 Ma)

      Name Origin

      Named after the Eifel region (Prusse rhénane)

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Mittleres Devon
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  • Early Devonian (419.2 +/-3.2 Ma)

    Rank
    chronostratigraphic Epoch
    Status
    informal term
    Age
    Lochkovian
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    • Emsian (407.6 +/-2.6 Ma)

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Frühes Devon
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    • Pragian (410.8 +/-2.8 Ma)

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Frühes Devon
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    • Lochkovian (419.2 +/-3.2 Ma)

      Name Origin

      Named after the town of Lochkhow (Bohemia).

      Rank
      chronostratigraphic Stage
      Status
      valid
      Age
      Frühes Devon
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