Triassic (251.902 +/- 0.024 Ma)

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Representation and status

Index
Tr
Color CMYK
50/80/0/0 (Commission for the Geological Map of the World)
Color RGB
R: 129 G: 43 B: 146
Rank
chronostratigraphic Period
Validity
Unit is in Use
Status
valid formal name

Nomenclature

Deutsch
Trias
Français
Trias
Italiano
Triassico
English
Triassic (251.902 +/- 0.024 Ma)
Origin of the Name

Name derived from the classical three-fold subdivision in the germanic facies realm.

Historical Variants

Trias (von Alberti 1834), Dreigeteilten

Nomenclatorial Remarks

die Trias (DE), le Trias (FR)

Hierarchy and sequence

Subordinate units
Units at roof

References

Definition
von Alberti F. A. (1834) : Beitrag zu einer Monographie des Bunten Sandsteins, Muschelkalks und Keupers und die Verbindung dieser Gebilde zu einer Formation Stuttgart und Tübingen

  • Late Triassic (~ 237 Ma)

    Rank
    chronostratigraphic Epoch
    Status
    valid formal name
    Age
    Carnian
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    • Rhaetian (~ 208.5 Ma)

      Name Origin

      Rhaetian Alps (Switzerland, Austria and Italy)

      Rank
      chronostratigraphic Stage
      Status
      valid formal name
      Age
      Rhaetian
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    • Norian (~ 227 Ma)

      Name Origin

      Noric Alps / Noricum (Latin): ancient Roman province south of the Danube River in present-day Austria.

      Rank
      chronostratigraphic Stage
      Status
      valid formal name
      Age
      Norian
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      • Sevatian

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        In short

        Local substage corresponding to the Late Norian (Late Triassic).

        Age
        Norian
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      • Alaunian

        Name Origin

        Named after the Hallaun people in Hollein (Tyrol, Austria).

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        In short

        Local substage corresponding to the Middle Norian (Late Triassic).

        Age
        Norian
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      • Lacian

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        In short

        Local substage corresponding to the Early Norian (Late Triassic).

        Age
        Norian
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    • Carnian (~ 237 Ma)

      Name Origin

      Named atfer the Carnic Alps zwischen Austria and Italy (East Tyrol, Carinthia, Friuli and Veneto).

      Rank
      chronostratigraphic Stage
      Status
      valid formal name
      Age
      Carnian
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      • Tuvalian

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        Age
        Spätes Carnien
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      • Julian

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        Age
        Mittleres Carnien
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  • Middle Triassic (247.2 Ma)

    Rank
    chronostratigraphic Epoch
    Status
    valid formal name
    Age
    Anisian
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    • Ladinian (~ 242 Ma)

      Name Origin

      Named after the Ladini people of the Dolomites, N Italy.

      Rank
      chronostratigraphic Stage
      Status
      valid formal name
      Age
      Ladinian
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      • Longobardian

        Name Origin

        Name derived fromthe term Longobardi, designating the territories controlled by the Lombards in Italy.

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        In short
        Last, informal substage of the Ladinian.
        Age
        Spätes Ladinien
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      • Fassanian

        Name Origin

        Named after the Val di Fassa (Italia).

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        In short
        First, informal substage of the Ladinian. Originally based on the Buchenstein Beds, it corresponds to a major transgressive interval.
        Age
        Frühes Ladinien
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    • Anisian (247.2 Ma)

      Name Origin

      Named after the Enns (= Anisus) River at Grossreifling (Austrian Alps).

      Rank
      chronostratigraphic Stage
      Status
      valid formal name
      Nomenclatorial Remarks
      <p>Virglorien supérieur</p>
      In short

      First stage of the Middle Triassic.

      Age
      Anisian
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      • Illyrian

        Name Origin

        Named after the antique region Illyria (western part of the Balkan Peninsula).

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        In short
        Last substage of the Anisian (Middle Triassic).
        Age
        Spätes Anisien
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      • Pelsonian

        Name Origin

        Named after Lake Pelso = Lake Balaton (Transdanubian region, Hungary.

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        In short
        Third substage of the Anisian.
        Age
        Anisian
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      • Bithynian

        Name Origin

        Named after the Roman province Bithynia (NW Turkey).

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        In short
        Second substage of the Anisian (Middle Triassic).
        Age
        Anisian
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      • Aegean

        Name Origin

        Named after the Aegean Sea (Greece).

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        Nomenclatorial Remarks
        Ägäissches Meer = mer Égée
        In short
        First substage of the Anisian (Middle Triassic).
        Age
        Frühes Anisien
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  • Early Triassic (251.902 +/-0.024 Ma)

    Rank
    chronostratigraphic Epoch
    Status
    valid formal name
    Age
    Induan
    Show details

    • Olenekian (251.2 Ma)

      Name Origin

      Olenek = Olenyok River, N Siberian Russia

      Rank
      chronostratigraphic Stage
      Status
      valid formal name
      In short

      In Europe the Olenekian is the time when the deposition of a large part of the Buntsandstein occured .

      Age
      Olenekian
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      • Spathian

        Name Origin

        Leonard Frank Spath (1882-1957), British geologist and paleontologist.

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
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      • Smithian

        Name Origin
        James Perrin Smith (1864-1931), US geologist and paleontologist.
        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
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    • Induan (251.902 +/-0.024 Ma)

      Name Origin

      Indus River in the Salt Range of Pakistan.

      Rank
      chronostratigraphic Stage
      Status
      valid formal name
      Age
      Induan
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      • Dienerian

        Name Origin

        Karl Diener (1862-1928), Austrian geologist, paleontologist and alpinist.

        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
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      • Griesbachian

        Name Origin
        Griesbach
        Rank
        chronostratigraphic Substage
        Status
        local name (informal)
        Show details
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