Early Jurassic (201.3 +/-0.2 Ma)

Darstellung und Status

Farbe CMYK
75 / 5 / 0 / 0
Farbe RGB
R: 66 G: 174 B: 208
Rang
chronostratigraphische Epoche
Gebrauch
Element ist in Gebrauch
Status
gültiger formeller Begriff
Diskussion des Status

Nomenklatur

Deutsch
Früher Jura
Français
Jurassique précoce
Italiano
Giurassico primo
English
Early Jurassic (201.3 +/-0.2 Ma)
Historische Varianten

Eojurassique (Lugeon 1910: incl. Rhétien et Aalénien), Série paléojurassique (Revil 1911), Lias [sic]

Alter

Alter Top
  • Toarcien
Alter Basis
  • Hettangien
  • Toarcian (182.7 +/-0.7 Ma)

    Name Origin

    Named after the town of Thouars (Deux-Sèvres, France), S Saumur. The protected stratotype lies in an old quarry.

    Rang
    chronostratigraphische Stufe
    Status
    gültiger formeller Begriff
    Nomenclatorial Remarks
    <p>Latin: Toarcium</p>
    Kurzbeschreibung

    The Pliensbachian/Toarcian boundary is marked by a major faunal turnover and regional stratigraphic gaps, followed by a global Oceanic Anoxic Event (OAE) recorded as black shales (such as the well-known «Posidonienschiefer» of Southern Germany, equivalent to the French «schistes-carton»).

    Age
    Toarcien
    • Late Toarcian

      Rang
      chronostratigraphische Sub-Stufe
      Status
      gültiger formeller Begriff
      Age
      spätes Toarcien
    • Middle Toarcian

      Rang
      chronostratigraphische Sub-Stufe
      Status
      gültiger formeller Begriff
      Kurzbeschreibung
      The Middle Toarcian is defined biostratigraphically by the ammonite genera Hildoceras and Haugia.
      Age
      mittleres Toarcien
    • Early Toarcian

      Rang
      chronostratigraphische Sub-Stufe
      Status
      gültiger formeller Begriff
      Kurzbeschreibung

      The Early Toarcian is characterized almost worldwide by black shales (among which the well-known «Posidonienschiefer» of Southern Germany, and the French «schistes-carton») with an ammonite fauna composed mainly of dactylioceratids, harpoceratids and early hildoceratids.

      Age
      frühes Toarcien
      • Toarcian Oceanic Anoxic Event

        Rang
        OAE
        Status
        informeller Begriff
        Kurzbeschreibung

        Major oceanic anoxic event of the Early Toarcian (around 183 Ma ago), documented by black shale deposits found on all major continents (no oceanic drilling cores have recovered black shales of this age as there is little or no Toarcian ocean crust remaining in the world ocean). This event correlates with a marine extinction event.

  • Pliensbachian (190.8 +/-1.0 Ma)

    Name Origin

    Named after the village of Pliensbach (Baden-Württemberg, S Germany), 30 km E Stuttgart.

    Rang
    chronostratigraphische Stufe
    Status
    gültiger formeller Begriff
    Age
    Pliensbachien
    • Domerian

      Name Origin

      Named after Monte Domaro (Italia), Val Trompia / Lombardia.

      Rang
      chronostratigraphische Sub-Stufe
      Status
      informeller Begriff
      Kurzbeschreibung
      Informal substage corresponding to the late Pliensbachian.
      Age
      spätes Pliensbachien (= Domérien)
    • Carixian

      Name Origin

      Named after Charmouth (Dorset, UK).

      Rang
      chronostratigraphische Sub-Stufe
      Status
      informeller Begriff
      Nomenclatorial Remarks
      Latin: Carixium
      Kurzbeschreibung
      First, informal substage of the Pliensbachian.
      Age
      frühes Pliensbachien (= Carixien)
  • Sinemurian (199.3 +/-0.3 Ma)

    Name Origin

    Named after the town of Sémur-en-Auxois (Côte-d'Or, France).

    Rang
    chronostratigraphische Stufe
    Status
    gültiger formeller Begriff
    Nomenclatorial Remarks
    <p>Latin: Sinemurium</p>
    Age
    Sinémurien
    • Lotharingian

      Name Origin

      Named after the Lorraine region (Lotharingium = carolingian province), NE France.

      Rang
      Chronostratigraphie
      Status
      obsoleter Begriff (nicht mehr verwendet)
      Kurzbeschreibung

      Former chronostratigraphic subdivision corresponding to the Late Sinemurian substage.

      Age
      spätes Sinémurien
  • Hettangian (201.3 +/-0.2 Ma)

    Name Origin

    Named after the town of Hettange (Moselle, N France), just south of the border with Luxembourg,

    Rang
    chronostratigraphische Stufe
    Status
    gültiger formeller Begriff
    Kurzbeschreibung

    First stage of the Jurassic.

    Age
    Hettangien
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