• Quaternary (2.58 Ma)

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    Età
    Gelasiano - Olocene
    In breve

     

    Geological period beginning with the Gauss/Matuyama palaeomagnetic reversal and largely influenced by successive glacials in a context of increased global ice volume. In Switzerland one can assume that all of the (peri)glacial deposits belong to the Quaternary.

     

    • Holocene (11.7 ka)

      Name Origin

      holos = fully, entirely , kaïno = recent

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      In breve

       

      Most recent stratigraphic unit referring to the warm episod that began with the end of the last glacial period.

       

      Age
      Olocene
      • Subatlantic

        Rango
        climato/palinostratigrafia
        Statuto
        termine informale
        In breve

         

        Current climatic/palynological stage of the European Quaternary (approximate age range: from 2800-2450 calBP = 850-500 BC to present).

         

        Age
        Olocene
      • Subboreal

        Rango
        climato/palinostratigrafia
        Statuto
        termine informale
        In breve

         

        Palynological stage of the European Quaternary (approximate age range: 5500-2800 calBP).

         

        Age
        Olocene
      • Atlantic

        Name Origin

        Warm and moist climatic phase originally based on the study of Danish peat bogs.

        Rango
        climato/palinostratigrafia
        Statuto
        termine informale
        In breve

         

        Palynological stage depicting a climatic optimum in Europe, and characterised by the presence of oak, elm, linden and iva (approximate range: 9000-5500 calBP).

         

        Age
        Olocene
      • Boreal

        Name Origin

        Cold climatic phase originally based on the study of Danish peat bogs.

        Rango
        climato/palinostratigrafia
        Statuto
        termine informale
        In breve

         

        Palynological stage of the European Quaternary (approximate age range: 10200-9000 calBP).

         

        Age
        Olocene
      • Preboreal

        Name Origin

        Transitional climatic phase originally based on the study of Danish peat bogs.

        Rango
        climato/palinostratigrafia
        Statuto
        termine informale
        In breve

         

        Palynological stage of the European Quaternary, at the base of the Holocene (approximate age range: 11650-10200 calBP).

         

        Age
        Olocene
    • Pleistocene (2.58 Ma)

      Name Origin

      pleistos = le plus , kaïno = récent

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Gelasiano
      • Late Pleistocene (126 ka)

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        By definition, the Late Pleistocene corresponds to the last interglacial–glacial cycle (Gondiswil Interglacial and Birrfeld Glacial in Switzerland).

         

        • Younger Dryas

          Name Origin

          Named after the cold-climate wildflower Dryas octopetala Linnaeus.

           

          Rango
          climato/palinostratigrafia
          Statuto
          termine informale
          In breve

           

          Cold floral stage at the end of the Late Pleistocene (12900-11500 BP = 11000-9500 av. J.C.).

           

          Age
          Spätes Pleistozän
        • Allerød

          Name Origin

          Named after the town of Allerød (Denmark).

           

          Rango
          climato/palinostratigrafia
          Statuto
          termine informale
          In breve

           

          Warmer climatic oscillation of the late glacial Pleistocene (11800-11000 BP = 11400-10730 av. J.C.), identified on the basis of pollen analysis.

           

          Age
          Spätes Pleistozän
        • Older Dryas

          Name Origin

          Named after the cold-climate wildflower Dryas octopetala Linnaeus.

          Rango
          climato/palinostratigrafia
          Statuto
          termine informale
          In breve

           

          (12000-11800 BP = 11590-11400 av. J.C.)

           

          Age
          Spätes Pleistozän
        • Bølling

          Name Origin

          série de tourbes découvertes au lac Bølling, dans le Jutland central

          Rango
          climato/palinostratigrafia
          Statuto
          termine informale
          In breve

           

          Floral stage (13000-12000 BP = 11720-11590 av. J.C.).

           

          Age
          Spätes Pleistozän
        • Oldest Dryas

          Name Origin

          Named after the cold-climate wildflower Dryas octopetala Linnaeus.

          Rango
          climato/palinostratigrafia
          Statuto
          termine informale
          In breve

           

          Ab ca. 18'000-15'000 BP, je nach Autor.

           

          Age
          Spätes Pleistozän
        • Eemian

          Name Origin

          Named after the river Eem in the area of the city of Amersfoort (Netherlands).

           

          Rango
          cronostratigrafia
          Statuto
          termine informale
          Nomenclatorial Remarks
          Riss-Würm interglacial (Alps), Ipswichian (United Kingdom), Mikulin interglacial (Russia), Valdivia interglacial (Chile), Sangamonian (North America)
          In breve

           

          Initial palynostratigraphic subdivision of the Late Pleistocene («Tarantian») of NW Europe, roughly corresponding to MIS-5e and to the Riss-Würm Interglacial.

           

          Age
          Spätes Pleistozän
      • Middle Pleistocene (781 ka)

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        In Switzerland the age of the Hochterrasse deposits roughly coincides with the Middle Pleistocene.

         

        • Saalian

          Name Origin

          Named after the river Saale (Deutschland).

           

          Rango
          cronostratigrafia
          Statuto
          termine informale
          In breve

           

          Terminal substage of the Middle Pleistocene of NW Europe, between Holsteinian and Eemian, characterised by cold climate (culminating in the Alpine region with the Riss glaciation).

           

          Age
          Pleistocene medio
        • Holsteinian

          Name Origin

          Named after the Holstein region (N Germany).

           

          Rango
          cronostratigrafia
          Statuto
          termine informale
          Nomenclatorial Remarks
          Hoxnian (United Kingdom), Likhvinian (Russia)
          In breve

           

          Palynostratigraphic subdivision of the Middle Pleistocene (Ionian) of NW Europe, corresponding to MIS-11 and to the Mindel-Riss Interglacial.

           

          Age
          Pleistocene medio
        • Elsterian

          Name Origin

          Named after the river Weisse Elster (E Germany), a tributary of the river Saale.

           

          Rango
          cronostratigrafia
          Statuto
          termine informale
          Nomenclatorial Remarks
          Anglian (United Kingdom), Okian (Russia)
          In breve

           

          Substage of the Middle Pleistocene of NW Europe, corresponding to MIS-12 and characterised by a cold climate (culminating in the Alpine region with the Mindel glaciation).

           

          Age
          Pleistocene medio
        • Cromerian

          Name Origin

          Named after the East Anglian town of Cromer (UK).

           

          Rango
          cronostratigrafia
          Statuto
          termine informale
          In breve

           

          Initial palynostratigraphic subdivision of the Middle Pleistocene («Ionian») of NW Europe, encompassing several glacial/interglacial cycles under a relatively mild climate (Günz-Mindel Interglacial).

           

          Age
          Pleistocene medio
      • Early Pleistocene (2.58 Ma)

        Rango
        cronostratigrafia
        In breve

         

        Geological subepoch characterised by a predominantly reversed polarised paleomagnetic field (Matuyama) and the onset of large glacial fluctuations.

         

        Age
        Gelasiano
        • Calabrian (1.80 Ma)

          Name Origin

          Named after the Calabria region (Italy).

           

          Rango
          Piano cronostratigrafico
          Statuto
          termine formale valido
          In breve

           

          Second substage of the Early Pleistocene.

           

          Age
          Primo Pleistocene
          • Sicilian

            Name Origin

            Named after Sicilia (Italia).

             

            Rango
            Sotto-Piano cronostratigrafico
            Statuto
            valido
            In breve

             

            Regional substage (= late Calabrian, Early Pleistocene) in Italy.

             

            Age
            Calabriano
          • Emilian

            Name Origin

            Named after the Emilia region (Italia).

             

            Rango
            Sotto-Piano cronostratigrafico
            Statuto
            valido
            In breve

             

            Regional substage (= middle Calabrian, Early Pleistocene) in Italy.

             

            Age
            Calabriano
          • Santernian

            Rango
            Sotto-Piano cronostratigrafico
            Statuto
            valido
            In breve

             

            Regional substage (= early Calabrian, Early Pleistocene) in Italy.

             

            Age
            Calabriano
        • Gelasian (2.58 Ma)

          Name Origin

          Named after the town of Gela (Italia), Sicilia.

           

          Rango
          Piano cronostratigrafico
          Statuto
          termine formale valido
          Age
          Primo Pleistocene
  • Neogene (~ 23 Ma)

    Origine del nome

    neos = new , genos = birth

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    Età
    Aquitaniano - Piacenziano
    In breve

     

    Formal name for the «late Tertiary» period (Miocene and Pliocene).

     

    • Pliocene (~5.3 Ma)

      Name Origin

      plios = plus , kaïno = récent

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Zancleano
      • Piacenzian (~3.6 Ma)

        Name Origin

        Named after the village of Piacenzia (Italia).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        tardo Plioceno
      • Zanclean (~5 Ma)

        Name Origin

        Derived from Zancla, the pre-Roman name for the town of Messina in Sicily (Italy).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Pliocene.

         

        Age
        Pliocene
    • Miocene (~23 Ma)

      Name Origin

      meios = less, kaïno = recent

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Aquitaniano
      • Messinian (~7 Ma)

        Name Origin

        Named after the town of Messina (Italia), Sicilia.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Last stage of the Miocene.

         

        Age
        tardo Miocene
      • Tortonian (~11.6 Ma)

        Name Origin

        Named after the city of Tortona (Italia), Piemonte.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Stage of the Late Miocene.

         

        Age
        tardo Miocene
      • Serravallian (~13.8 Ma)

        Name Origin

        Named after the town of Serravalle Scrivia (Italia), Piemonte.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Stage of the Middle Miocene.

         

        Age
        Miocene medio
      • Langhian (~16.0 Ma)

        Name Origin

        Named after the Langhe area north of Ceva (Italy).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        le Langhe (plural)
        In breve

         

        Stage of the Middle Miocene.

         

        Age
        Miocene medio
        • Nördlinger-Ries-Impakt

          Statuto
          termine locale (informale)
          In breve

           

          Meteorischer Impakt im Grenzgebiet zwischen Schwäbischer Alb und Fränkischer Alb, der durch Coesit-führende Impaktite (insb. Suevit = Schwabenstein) und Tektite (sog. Moldavit) bewiesen wurde.

           

          Age
          Langhiano
      • Burdigalian (~20.4 Ma)

        Name Origin

        Named after the town of Bordeaux = Burdigala (Gironde, France).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        Latin: Burdigalia
        In breve

         

        Second stage of the Miocene.

         

        Age
        primo Miocene
      • Aquitanian (~23 Ma)

        Name Origin

        Named after the Aquitaine region (France).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Miocene Series, and hence base of the Neogene System.

         

        Age
        primo Miocene
  • Palaeogene (~ 66 Ma)

    Origine del nome

    palaeos = ancient , genos = birth

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    Età
    Daniano - tardo Oligocene
    In breve

     

    Formal name for the «early Tertiary» period (Paleocene, Eocene and Oligocene).

     

    • Oligocene (~34 Ma)

      Name Origin

      oligos = peu , kaïno = récent

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Rupeliano
      • Chattian (~28 Ma)

        Name Origin

        Named after the Chatti tribe (Deutschland).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Oligocene
      • Rupelian (~34 Ma)

        Name Origin

        Named after the Rupel river (Belgium).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Oligocene. Its definition was originally based on the Rupel Group.

         

        Age
        primo Rupeliano
    • Eocene (~56 Ma)

      Name Origin

      eos = aurore, début , kaïno = récent

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Ypresiano
      • Priabonian (~38 Ma)

        Name Origin

        Named after the village of Priabona (Italia), Vicenza.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        Parastratotypes à Ghenderle, Brendola, Mossano et Possagno (Cita 1969) ; calcaires marneux à Echinides de Priabona (Boussac 1909a)
        In breve

         

        Last stage of the Eocene. Definition originally based on the «assises de la Granella», «groupe des couches à Orbitoides de Priabona» and «marnes de Brendola».

         

        Age
        tardo Eocene
      • Bartonian (~41 Ma)

        Name Origin

        Named after the village of Barton-on-Sea (Hampshire, UK).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Second stage of the Middle Eocene. Its definition was originally based both on the Barton Beds (Hampshire) and the Sables d'Auvers-Beauchamp (Paris Basin).

         

        Age
        Eocene medio
        • Marinesian

          Name Origin

          Named after the village of Marines (Val-d'Oise, France)

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

          Second substage of the Bartonian in the Paris Basin. Original definition based on the «Sables de Marines». It corresponds to the Late Bartonian of the International Time Scale.

           

          Age
          Bartoniano
        • Auversian

          Name Origin

          Named after the town of Auvers-sur-Oise (Val d'Oise, France) ; le stratotype des sablières du Bois-le-Roi est en cours d'aménagement.

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          Termine valido
          Bartonian
          In breve

           

          First substage of the Bartonian in the Paris Basin. It corresponds to the Early Bartonian of the International Time Scale.

           

          Age
          primo Bartoniano
      • Lutetian (~48 Ma)

        Name Origin

        Named after the town of Paris = Lutetia (France).

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Second stage of the Eocene.

         

        Age
        Eocene medio
      • Ypresian (~56 Ma)

        Name Origin

        Named after the village of Ypres = Ieper(Belgium).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Eocene.

         

        Age
        primo Eocene
        • Cuisian

          Name Origin

          Named after the village of Cuise-la-Motte (Oise, France).

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

          Last, informal substage of the Ypresian.

           

          Age
          tardo Ypresiano
        • Sparnacian

          Name Origin

          Named after the town of Épernay = Sparnacum (Marne, France).

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

          Early Ypresian of the Paris Basin.

           

          Age
          primo Eocene
    • Paleocene-Eocene Thermal Maximum (PETM)

      Rango
      climato/palinostratigrafia
      Statuto
      termine informale
      In breve

       

      Global thermal maximum marked by a strong negative anomaly in δ13C values at the Paleocene-Eocene boundary.

       

    • Paleocene (~66 Ma)

      Name Origin

      palaeos = ancient , eos = dawn, kaïno = recent (i.e. Palaeo-Eocene, see Pulvertaft 1999)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      • Thanetian (~59 Ma)

        Name Origin

        Named after the Isle of Thanet (Kent, UK).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Last stage of the Paleocene.

         

        Age
        tardo Paleocene
      • Selandian (~62 Ma)

        Name Origin

        Named after the Zealand island (Denmark).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Paleocene medio
      • Danian (~ 66 Ma)

        Name Origin

        Named after the Latin name for Denmark.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Paleocene (and hence of the Cenozoic as well).

         

        Age
        primo Paleocene
  • Cretaceous (~ 145 Ma)

    Origine del nome

    Named derived from the characteristic chalk deposits (Latin: creta = craie, Kreide) of the Paris-London Basin.

     

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    Età
    Berriasiano - Maastrichtiano
    • Late Cretaceous (~ 100 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Cenomaniano
      • Maastrichtian (~ 71 Ma)

        Name Origin

        Named after the town of Maastricht (Netherlands).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Last stage of the Cretaceous (and hence of the Mesozoic as well).

         

        Age
        Maastrichtiano
      • Campanian (~ 84 Ma)

        Name Origin

        Named after the Champagne de Saintonge (Charentes, France), near Cognac.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Campaniano
      • Santonian (~ 86 Ma)

        Name Origin

        Named after the former province of Saintonge (Charentes, France).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Santoniano
      • Coniacian (~ 89 Ma)

        Name Origin

        Named after the town of Cognac (Charente-Maritime, France), where the historical stratotype lies.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Initially defined as the basal stage of the «Craie supérieure» (chalk ; cf. Cretaceous).

         

        Age
        Coniaciano
      • Turonian (~ 94 Ma)

        Name Origin

        Named after Turonia, the Latine name for Tours (France), Indre-et-Loire.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Turoniano
      • Bonarelli level (OAE-2)

        Name Origin

        Named after the Italian geologist Guido Bonarelli (1871-1951).

        Rango
        OAE
        Statuto
        valido
        In breve

         

        Oceanic anoxic event at the Cenomanian/Turonian boundary (around 93 Ma ago) with a major impact on the chemistry of the oceans worldwide. This event correlates with a marine extinction event.

         

        Age
        Cenomaniano tardo
      • Cenomanian (~ 100 Ma)

        Name Origin

        Named atfer Cenomanum, the Latine name for Le Mans (France), Sarthe.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Late Cretaceous.

         

        Age
        Cenomaniano
    • Early Cretaceous (~ 145 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Berriasiano
      • Albian (~ 112 Ma)

        Name Origin

        Named after the Aube region (France).

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        <p>Latin: Alba</p>
        In breve

         

        Last stage of the Early Cretaceous.

         

        Age
        Albiano
        • Vraconnien

          Name Origin

          La Vraconnaz = La Vraconne (VD), Saint-Croix

          Rango
          cronostratigrafia
          Statuto
          termine obsoleto (abbandonato)
          Nomenclatorial Remarks
          <p>Vraconnin (Mayer-Eymar 1885) = Albien moyen à tardif &gt;&lt; Rhotomagin = Vraconnien !</p>
          In breve

           

          Local chronostratigraphic subdivision corresponding to the late Albian (and earliest Cenomanian).

           

          Age
          Albiano terminale
        • Oceanic Anoxic Event (OAE 1d)

          Rango
          OAE
          Statuto
          valido
          Age
          Albiano terminale
        • Oceanic Anoxic Event (OAE 1c)

          Rango
          chemostratigrafia
          Statuto
          valido
          In breve

           

          Oceanic anoxic event of the Late Albian.

           

          Age
          Albiano medio
      • Paquier Oceanic Anoxic Event (OAE 1b)

        Rango
        OAE
        Statuto
        valido
        In breve

         

        Oceanic anoxic event of the Early Albian.

         

        Age
        Spätestes Aptien
      • Aptian (~ 125 Ma)

        Name Origin

        Named after the town of Apt (Vaucluse, France).

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Stage of the Early Cretaceous.

         

        Age
        Aptiano
        • Clansayésien

          Name Origin

          Named after the village of Clansayes (Drôme, France).

           

          Rango
          cronostratigrafia
          Statuto
          termine locale (informale)
          In breve

           

          Local chronostratigraphic substage corresponding to the Late Aptian.

           

          Age
          Aptiano tardo
        • Gargasian

          Name Origin

          Named after the village of Gargas (Vaucluse, France).

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

          Local chronostratigraphic subdivision corresponding to the latest Early Aptian and to the Middle Aptian.

           

          Age
          Primo Aptiano
        • Bedoulian

          Name Origin

          Named after the village of La Bédoule (Bouches-du-Rhône, France), near Cassis.

           

          Rango
          cronostratigrafia
          Statuto
          termine locale (informale)
          Termine valido
          Aptian
          In breve

           

          Local chronostratigraphic subdivision designating the Early Aptian. The Bedoulian, based on pelagic deposits (Marno-calcaires de la Bedoule), is approximately equivalent to the Rhodanian, which is based on littoral deposits.

           

          Age
          Primo Aptiano
        • Selli level (OAE 1a)

          Name Origin

          Named after the Italian geologist Raimondo Selli (1916-1983).

          Rango
          OAE
          Statuto
          valido
          In breve

           

          Oceanic anoxic event at the base of the Aptian (around 120 Ma ago) with a major impact on the chemistry of the oceans worldwide.

           

          Age
          Primo Aptiano
      • Barremian (~ 130 Ma)

        Name Origin

        Named after the village of Barrême (Alpes-de-Haute-Provence, France).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        ... based on the Marno-calcaires de Barrême.

         

        Age
        Barremiano
      • Hauterivian (~ 134 Ma)

        Name Origin

        Named after the village of Hauterive (NE), NE Neuchâtel.

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Hauteriviano
        • Faraoni Oceanic Anoxic Event

          Rango
          OAE
          Statuto
          valido
          Age
          Spätestes Hauterivien
      • Valanginian (~ 140 Ma)

        Name Origin

        Named after the village of Valangin (NE), at the upper end of the Gorges du Seyon (see also inventory of Swiss geotopes n°245).

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        <p>Valendis = ancien nom allemand de Valangin</p>
        In breve

         

        Second stage of the Early Cretaceous.

         

        Age
        Valanginiano
      • Berriasian (~ 145 Ma)

        Name Origin

        Named after the village of Berrias (Ardèche, France).

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        <p>The Berriasella jacobi Zone was previously&nbsp;placed at the end of the Tithonian.</p>
        In breve

         

        First stage of the Cretaceous.

         

        Age
        Berriasiano
  • Jurassic (~ 200 Ma)

    Origine del nome

    Named after the Jura Mountains (France, Switzerland).

     

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    Età
    Hettangiano - Tithoniano
    • Late Jurassic (~ 161 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Oxfordiano
      • Tithonian (~ 150 Ma)

        Name Origin

        Named derived from the Greek mythology: Tithon was the son of Laomedon of Troy, who fell in love with Eos, Greek goddess of the dawn (thus prefiguring the Cretaceous system).

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        <p>The Berriasella jacobi Zone, previously&nbsp;placed at the end of the Tithonian, is now considered as defining the start&nbsp;of the Berriasian.</p>
        In breve

         

        Last stage of the Jurassic.

         

        Age
        Tithoniano
      • Kimmeridgian (~ 155 Ma)

        Name Origin

        Named after the town of Kimmeridge on the Dorset coast (UK). The Kimmeridge Clay Formation is the main oil source rock in the North Sea petroleum province.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Kimmeridgiano
      • Oxfordian (~ 161 Ma)

        Name Origin

        Named after the city of Oxford (UK).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Late Jurassic.

         

        Age
        Oxfordiano
    • Middle Jurassic (~ 175 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Aaleniano
      • Callovian (~ 165 Ma)

        Name Origin

        Named derived from the old spelling of Kellaways Bridge (UK), Wiltshire, 2 miles NE Chippenham.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Last stage of the Middle Jurassic.

         

        Age
        Calloviano
      • Bathonian (~ 168 Ma)

        Name Origin

        Named after the town of Bath (Somerset, UK), near Bristol. The city itself is largely built of Bath Stone, a bright white oolithic limestone that is quarried nearby.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Third stage of the Middle Jurassic.

         

        Age
        Bathoniano
      • Bajocian (~ 172 Ma)

        Name Origin

        Named after the town of Bayeux (Calvados, France) in Normandy.

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        <p>Latin: Bajocium</p>
        In breve

         

        Second stage of the Middle Jurassic.

         

        Age
        Bajociano
        • Gaetani Oceanic Anoxic Event

          Name Origin

          Named in recognition of Maurizio Gaetani's work on Jurassic sedimentary successions of the Lombardy Basin.

          Rango
          OAE
          Statuto
          termine informale
          In breve

           

          Black shale interval locally developped at the transition betwenn the Rosso Ammonitico Lombardo and the Radiolarite Group.

           

          Age
          frühes Bajocien
      • Aalenian (~ 175 Ma)

        Name Origin

        Named after the town of Aalen (Germany), Baden-Württemberg

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Middle Jurassic.

         

        Age
        Aaleniano
    • Early Jurassic (~ 200 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Hettangiano
      • Toarcian (~ 183 Ma)

        Name Origin

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

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        Latin: Toarcium
        In breve

         

        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
        Toarciano
        • Late Toarcian

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine formale valido
          Age
          Toarciano tardo
        • Middle Toarcian

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine formale valido
          In breve

           

          The Middle Toarcian is defined biostratigraphically by the ammonite genera Hildoceras and Haugia.

           

          Age
          Toarciano medio
        • Early Toarcian

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine formale valido
          In breve

           

          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
          primo Toarciano
          • Toarcian Oceanic Anoxic Event

            Rango
            OAE
            Statuto
            termine informale
            In breve

             

            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 Ma)

        Name Origin

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

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Pliensbachiano
        • Domerian

          Name Origin

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

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine informale
          In breve

           

          Informal substage corresponding to the late Pliensbachian.

           

          Age
          Pliensbachiano tardo (= Domeriano)
        • Carixian

          Name Origin

          Named after Charmouth (Dorset, UK).

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine informale
          Nomenclatorial Remarks
          Latin: Carixium
          In breve

           

          First, informal substage of the Pliensbachian.

           

          Age
          primo Pliensbachiano (= Carixiano)
      • Sinemurian (~ 196 Ma)

        Name Origin

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

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        <p>Latin: Sinemurium</p>
        Age
        Sinemuriano
        • Lotharingian

          Name Origin

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

           

          Rango
          cronostratigrafia
          Statuto
          termine obsoleto (abbandonato)
          In breve

           

          Former chronostratigraphic subdivision corresponding to the Late Sinemurian substage.

           

          Age
          Sinemuriano tardo
      • Hettangian (~ 200 Ma)

        Name Origin

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

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Jurassic.

         

        Age
        Hettangiano
  • Triassic (~ 252 Ma)

    Origine del nome

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

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    In breve

     

    Tectonically rather quiet period inbetween the Variscan and Alpine orogenic cycles. The first deposits are transgressive on a vast peneplain.

     

    Nota sul nome
    die Trias (DE), le Trias (FR)
    • Late Triassic (~ 229 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Carnico
      • Rhaetian (~ 204 Ma)

        Name Origin

        Rhaetian Alps (Switzerland, Austria and Italy)

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Retico
      • Norian (~ 217 Ma)

        Name Origin

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

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Norico
        • Sevatian

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

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

           

          Age
          Norico
        • Alaunian

          Name Origin

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

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

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

           

          Age
          Norico
        • Lacian

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

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

           

          Age
          Norico
      • Carnian (~ 229 Ma)

        Name Origin

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

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Carnico
        • Tuvalian

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          Age
          Carniano tardivo
        • Julian

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          Age
          Carnico medio
    • Middle Triassic (~ 246 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Anisico
      • Ladinian (~ 237 Ma)

        Name Origin

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

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Ladinico
        • Longobardian

          Name Origin

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

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

          Last, informal substage of the Ladinian.

           

          Age
          Ladinico tardo
        • Fassanian

          Name Origin

          Named after the Val di Fassa (Italia).

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

          First, informal substage of the Ladinian. Originally based on the Buchenstein Beds, it corresponds to a major transgressive interval.

           

          Age
          Primo Ladinico
      • Anisian (~ 246 Ma)

        Name Origin

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

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Nomenclatorial Remarks
        Virglorien supérieur
        In breve

         

        First stage of the Middle Triassic.

         

        Age
        Anisico
        • Illyrian

          Name Origin

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

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

          Last substage of the Anisian (Middle Triassic).

           

          Age
          Anisico tardo
        • Pelsonian

          Name Origin

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

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

          Third substage of the Anisian.

           

          Age
          Anisico
        • Bithynian

          Name Origin

          Named after the Roman province Bithynia (NW Turkey).

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          In breve

           

          Second substage of the Anisian (Middle Triassic).

           

          Age
          Anisico
        • Aegean

          Name Origin

          Named after the Aegean Sea (Greece).

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
          Nomenclatorial Remarks
          Ägäissches Meer = mer Égée
          In breve

           

          First substage of the Anisian (Middle Triassic).

           

          Age
          Primo Anisico
    • Early Triassic (~ 252 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Induano
      • Olenekian (~ 249 Ma)

        Name Origin

        Olenek = Olenyok River, N Siberian Russia

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

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

         

        Age
        Olenekiano
        • Spathian

          Name Origin

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

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
        • Smithian

          Name Origin

          James Perrin Smith (1864-1931), US geologist and paleontologist.

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
      • Induan (~ 252 Ma)

        Name Origin

        Indus River in the Salt Range of Pakistan.

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Induano
        • Dienerian

          Name Origin

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

           

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
        • Griesbachian

          Name Origin

          Griesbach

          Rango
          Sotto-Piano cronostratigrafico
          Statuto
          termine locale (informale)
  • Permian (298.90 +/-0.15 Ma)

    Origine del nome

    Named after the former Perm Governorate (Russia).

     

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    • Lopingian (~260 Ma)

      Name Origin

      Named after the town of Leping = Loping (Jiangxi Province, China).

       

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Wuchiapingian
      • Changhsingian (~254 Ma)

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Changhsingian
      • Wuchiapingian (~260 Ma)

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Wuchiapingian
    • Guadalupian (~272 Ma)

      Name Origin

      Named after the Guadalupe Mountains (Texas, USA).

       

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Roadian
      • Capitanian (~265 Ma)

        Name Origin

        Named after the Capitan Reef in the Guadalupe Mountains (Texas, USA).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Capitanian
      • Wordian (~269 Ma)

        Name Origin

        Named after the Word Formation (Word Ranch, Glass Mountains) of the North American Permian Basin.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Wordian
      • Roadian (~272 Ma)

        Name Origin

        Named after the Road Canyon Member of the Word Formation (Texas, USA).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Roadian
    • Cisuralian (~299 Ma)

      Name Origin

      Named after the Cisural Mountains (western, European part of the Ural Mountains).

       

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      Age
      Asseliano
      • Kungurian (~284 Ma)

        Name Origin

        Named after the town of Kungur (Russia), near Perm.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Kungurian
      • Artinskian (~290 Ma)

        Name Origin

        Named after the town of Artinsk = Arti (Russia), S Perm.

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Stage of the Early Permian.

         

        Age
        Artinskian
      • Sakmarian (~295 Ma)

        Name Origin

        Named after the Sakmara River (Russia).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Sakmarian
      • Asselian (~299 Ma)

        Name Origin

        Named after the Assel River, southern Ural Mountains (Kazakhstan / Bashkortostan).

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        First stage of the Cisuralian and hence base of the Permian.

         

        Age
        Asseliano
  • Carboniferous (358.9 +/-0.4 Ma)

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    • Pennsylvanian (~323 Ma)

      Name Origin

      Named after the Pennsylvania state (USA).

       

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      In breve

       

      Late Carboniferous epoch.

       

      Age
      Bashkirian
      • Late Pennsylvanian (~307 Ma)

        Rango
        Sotto-Epoca cronostratigrafica
        Statuto
        valido
        • Gzhelian (~304 Ma)

          Name Origin

          Named after the village of Gzhel = Gjel (Russia), 50 km SE Moscow.

           

          Rango
          Piano cronostratigrafico
          Statuto
          termine formale valido
        • Kasimovian (~307 Ma)

          Name Origin

          Named after the town of Kasimov (Russia).

           

          Rango
          Piano cronostratigrafico
          Statuto
          termine formale valido
      • Middle Pennsylvanian (~315 Ma)

        Rango
        Sotto-Epoca cronostratigrafica
        Statuto
        valido
        • Moscovian (~315 Ma)

          Rango
          Piano cronostratigrafico
          Statuto
          termine formale valido
      • Early Pennsylvanian (~323 Ma)

        Rango
        Sotto-Epoca cronostratigrafica
        Statuto
        valido
        • Bashkirian (~323 Ma)

          Rango
          Piano cronostratigrafico
          Statuto
          termine formale valido
    • Mississippian (~359 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine formale valido
      • Late Mississippian (~331 Ma)

        Rango
        Sotto-Epoca cronostratigrafica
        Statuto
        valido
        • Serpukhovian (~331 Ma)

          Rango
          Piano cronostratigrafico
          Statuto
          termine formale valido
      • Middle Mississippian (~347 Ma)

        Rango
        Sotto-Epoca cronostratigrafica
        Statuto
        valido
      • Early Mississippian (~359 Ma)

        Rango
        Sotto-Epoca cronostratigrafica
        Statuto
        valido
        • Tournaisian (~359 Ma)

          Name Origin

          Named after the town of Tournay

           

          Rango
          Piano cronostratigrafico
          Statuto
          termine formale valido
  • Devonian (419.2 +/-3.2 Ma)

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    • Late Devonien (382.7 +/-1.6 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine informale
      Age
      Frasnian
      • Famennian (372.2 +/-1.6 Ma)

        Rango
        Piano cronostratigrafico
        Statuto
        valido
        Age
        Late Devonian
      • Frasnian (382.7 +/-1.6 Ma)

        Name Origin

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

         

        Rango
        Piano cronostratigrafico
        Statuto
        valido
        Age
        Late Devonian
    • Middle Devonian (393.3 +/-1.2 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      valido
      • Givetian (387.7 +/-0.8 Ma)

        Name Origin

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

         

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Second stage of the Middle Devonian, originally defined based on the Givet Limestone.

         

        Age
        Middle Devonian
      • Eifelian (393.3 +/-1.2 Ma)

        Name Origin

        Named after the Eifel region (Prusse rhénane)

         

        Rango
        Piano cronostratigrafico
        Statuto
        valido
        Age
        Middle Devonian
    • Early Devonian (419.2 +/-3.2 Ma)

      Rango
      Epoca cronostratigrafica
      Statuto
      termine informale
      Age
      Lochkovian
      • Emsian (407.6 +/-2.6 Ma)

        Rango
        Piano cronostratigrafico
        Statuto
        valido
        Age
        Early Devonian
      • Pragian (410.8 +/-2.8 Ma)

        Rango
        Piano cronostratigrafico
        Statuto
        valido
        Age
        Early Devonian
      • Lochkovian (419.2 +/-3.2 Ma)

        Name Origin

        Named after the town of Lochkhow (Bohemia).

         

        Rango
        Piano cronostratigrafico
        Statuto
        valido
        Age
        Early Devonian
  • Silurian (443.8 +/-1.5 Ma)

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    • Pridoli (423.0 +/-2.3 Ma)

      Rango
      cronostratigrafia
      Statuto
      termine informale
      Age
      Siluriano
    • Ludlow (427.4 +/-0.5 Ma)

      Rango
      cronostratigrafia
      Statuto
      termine informale
      Age
      Siluriano
    • Wenlock (433.4 +/-0.8 Ma)

      Rango
      cronostratigrafia
      Statuto
      termine informale
      Age
      Siluriano
    • Llandovery (443.8 +/-1.5 Ma)

      Rango
      cronostratigrafia
      Statuto
      termine informale
      Age
      Siluriano
      • Telychian

        Rango
        Piano cronostratigrafico
        Statuto
        valido
        Age
        Siluriano
      • Aeronian (~439 Ma)

        Name Origin

        Cemcoed-Aeron Farm near Llandovery, Powys (Wales, UK)

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        In breve

         

        Second stage of the Llandovery Series (Early Silurian).

         

        Age
        Siluriano
      • Rhuddanian

        Rango
        Piano cronostratigrafico
        Statuto
        valido
        Age
        Siluriano
  • Ordovician (485.4 +/-1.9 Ma)

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    • Late Ordovician

      Rango
      Epoca cronostratigrafica
      Statuto
      termine informale
    • Middle Ordovician

      Rango
      Epoca cronostratigrafica
      Statuto
      termine informale
    • Early Ordovician

      Rango
      Epoca cronostratigrafica
      Statuto
      termine informale
      • Floian (~478 Ma)

        Name Origin

        Flo Parish, village in Västergötland, southern Sweden

        Rango
        Piano cronostratigrafico
        Statuto
        termine formale valido
        Age
        Early Ordovician
      • Tremadocian

        Rango
        Piano cronostratigrafico
        Statuto
        valido
        Age
        Early Ordovician
  • Cambrian (541.0 +/-1.0 Ma)

    Origine del nome

    Derived from the Latinised form of the Welsh name Cymru (Wales).

     

    Rango
    Periodo cronostratigrafico
    Statuto
    termine formale valido
    Età
    Cambriano
    In breve

     

    First system (and hence base) of the Paleozoic.

     

    Nota sul nome
    From the Old Welsh combrog = compatriot. According to Geoffrey of Monmouth in the first part of his pseudohistory Historia Regum Britanniae, the Trojan Brutus had three sons among whom (having subdued Gogmagog) he divided his lands after landing in Britain. His elder son, Locrinus, received the land between the rivers Humber and Severn, which he called Loegria (a Latinization of the Welsh name Lloegr, "England"). His second son, Albanactus, got the lands beyond the Humber, which took from him the name of Albany (Yr Alban in Welsh: Scotland). The younger son, Camber, was bequeathed everything beyond the Severn, which was called after him "Cambria".
  • Proterozoic (2500 Ma)

    Rango
    Eon cronostratigrafico
    Statuto
    termine formale valido
    Età
    Proterozoico
    In breve

     

    ... banded iron stones (2800-1800 Ma), tillites (2600-2100, 850 and 600 Ma) ...

     

    • Neoproterozoic (1000 Ma)

      Rango
      cronostratigrafia
      Statuto
      valido
      In breve

       

      Last era of the Proterozoic.

       

      Age
      Proterozoico
      • Ediacaran (~ 635 Ma)

        Name Origin

        Named after the Ediacara Hills (South Australia).

         

        Rango
        Periodo cronostratigrafico
        Statuto
        valido
        In breve

         

        Last period of the Neoproterozoic (ca. 635-541 Ma), with a peculiar soft-bodied fauna.

         

        Age
        Neoproterozoic (= Late Proterozoic)
      • Cryogenian (~ 720 Ma)

        Name Origin

        From krýos and génesis (Greek), meaning "cold" resp. "birth".

         

        Rango
        cronostratigrafia
        Statuto
        valido
        In breve

         

        Middle period of the Neoproterozoic, characterised by cold climatic conditions («Snowball Earth» ; Sturtian and Marinoan glaciations). Its base has been defined chronometrically.

         

        Age
        Neoproterozoic (= Late Proterozoic)
      • Tonian (1000 Ma)

        Name Origin

        From tóno (Greek), meaning "stretch".

         

        Rango
        cronostratigrafia
        Statuto
        valido
        In breve

         

        First period of the Neoproterozoic. Its base has been defined chronometrically.

         

        Age
        Neoproterozoic (= Late Proterozoic)
    • Mesoproterozoic (1600 Ma)

      Rango
      cronostratigrafia
      Statuto
      valido
      Age
      Proterozoico
      • Stenian (1200 Ma)

        Name Origin

        From stenós (Greek), meaning "narrow".

         

        Rango
        cronostratigrafia
        Statuto
        valido
        In breve

         

        Last period of the Mesoproterozoic, during which the supercontinent Rodinia assembled. Its base has been defined chronometrically.

         

        Age
        Mesoproterozoic (= Middle Proterozoic)
      • Ectasian (1400 Ma)

        Name Origin

        From éktasis (Greek), meaning "extension".

         

        Rango
        cronostratigrafia
        Statuto
        valido
        In breve

         

        Second period of the Mesoproterozoic. Its base has been defined chronometrically.

         

        Age
        Mesoproterozoic (= Middle Proterozoic)
      • Calymmian (1600 Ma)

        Name Origin

        From kálymma (Greek), meaning "cover".

        Rango
        cronostratigrafia
        Statuto
        valido
        In breve

         

        First period of the Mesoproterozoic. Its base has been defined chronometrically.

         

        Age
        Mesoproterozoic (= Middle Proterozoic)
    • Paleoproterozoic (2500 Ma)

      Rango
      cronostratigrafia
      Statuto
      valido
      Age
      Proterozoico
      • Statherian (1800 Ma)

        Name Origin

        From statherós (Greek), meaning "stable, firm".

         

        Rango
        cronostratigrafia
        Statuto
        valido
        In breve

         

        Last period of the Paleoproterozoic. Its base has been defined chronometrically.

         

        Age
        Paleoproterozoic (= Early Proterozoic)
      • Orosirian (2050 Ma)

        Name Origin

        From oroseirá (Greek), meaning "mountain range".

        Rango
        cronostratigrafia
        Statuto
        valido
        In breve

         

        Third period of the Paleoproterozoic. Its base has been defined chronometrically.

         

        Age
        Paleoproterozoic (= Early Proterozoic)
      • Rhyacian (2300 Ma)

        Name Origin

        From rhýax (Greek), meaning "stream of lava".

         

        Rango
        cronostratigrafia
        Statuto
        valido
        In breve

         

        Second period of the Paleoproterozoic : Bushveld Igneous Complex, Huronian (Makganyene) global glaciation. Its base has been defined chronometrically.

         

        Age
        Paleoproterozoic (= Early Proterozoic)
      • Siderian (2500 Ma)

        Name Origin

        From sídēros (Greek), meaning "iron".

         

        Rango
        cronostratigrafia
        Statuto
        valido
        In breve

         

        First period of the Paleoproterozoic, characterised by a peak in the deposition of banded iron formations (BIFs). Its base has been defined chronometrically.

         

        Age
        Paleoproterozoic (= Early Proterozoic)
  • Archean (4000 Ma)

    Origine del nome

    archeo (Latin): old (see also Grand Canyon, Colorado).

    Rango
    Eon cronostratigrafico
    Statuto
    termine formale valido
    Età
    Archeano
    In breve

     

    ... composed of granulites, green belts, non-metamorphic sedimentary rocks (argilites, arkoses, sandstones, rarely carbonates and evaporites), as well as first banded iron-stones.

     

    • Neoarchean (2800 Ma)

      Rango
      cronostratigrafia
      Statuto
      termine informale
      Age
      Archeano
    • Mesoarchean (3200 Ma)

      Rango
      cronostratigrafia
      Statuto
      termine informale
      Age
      Archeano
    • Paleoarchean (3600 Ma)

      Rango
      cronostratigrafia
      Statuto
      termine informale
      Age
      Archeano
    • Eoarchean (4000 Ma)

      Rango
      cronostratigrafia
      Statuto
      termine informale
      Age
      Archeano
  • Hadean (~ 4600 Ma)

    Origine del nome

    Named after Hades, the Greek god of the underworld.

     

    Rango
    Eon cronostratigrafico
    Statuto
    termine formale valido
    Età
    Hadean
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