Jurassic (201.4 +/-0.2 Ma)
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- Farbe CMYK
- 80 / 0 / 5 / 0
- Farbe RGB
- R: 52 G: 178 B: 201
- Rang
- chronostratigraphische Periode / geochronologisches System
- Gebrauch
- Element ist in Gebrauch
- Status
- gültiger formeller Begriff
Nomenklatur
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- Jurassique
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- English
- Jurassic (201.4 +/-0.2 Ma)
- Herkunft des Namens
-
Named after the Jura Mountains (France, Switzerland).
- Historische Varianten
-
calcaire du Jura (von Humboldt 1795), terrain jurassique (Brongniart 1830, d'Omalius d'Halloy 1831), système Jurassique = période Jurassique (Haug 1910), Jurazeit
Hierarchie und Abfolge
- Untergeordnete Einheiten
- Hangendes
Alter
- Alter Top
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- Tithonien
- Alter Basis
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- Hettangien
Geografie
- Typusregion
- Jura Mountains (France, Switzerland)
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Late Jurassic (163.5 +/-1.0 Ma)
- Rang
- chronostratigraphische Epoche / geochronologische Serie
- Status
- gültiger formeller Begriff
- Kurzbeschreibung
-
The Late Jurassic is the last geochronologic subepoch of the Jurassic, starting with the Oxfordian age (at the transition from the Middle Jurassic subepoch) and ending with the Tithonian age (at the transition to the Early Cretaceous subepoch). It is subdivided in three ages (Oxfordian, Kimmeridgian and Tithonian).
- Age
- Oxfordien
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Tithonian (152.1 +/-0.9 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).
- Rang
- chronostratigraphische Stufe / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Nomenclatorial Remarks
- <p>The Berriasella jacobi Zone, previously placed at the end of the Tithonian, is now considered as defining the start of the Berriasian.</p>
- Kurzbeschreibung
-
Last stage of the Jurassic.
- Age
- Tithonien
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Kimmeridgian (157.3 +/-1.0 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.
- Rang
- chronostratigraphische Stufe / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Age
- Kimméridgien
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Oxfordian (163.5 +/-1.0 Ma)
- Name Origin
-
Named after the city of Oxford (UK).
- Rang
- chronostratigraphische Stufe / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Kurzbeschreibung
-
First stage of the Late Jurassic.
- Age
- Oxfordien
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Middle Jurassic (174.1 +/-1.0 Ma)
- Rang
- chronostratigraphische Epoche / geochronologische Serie
- Status
- gültiger formeller Begriff
- Kurzbeschreibung
-
The Middle Jurassic is the middle geochronologic subepoch of the Jurassic, starting with the Aalenian age (at the transition from the Early Jurassic subepoch) and ending with the Callovian age (at the transition to the Late Jurassic subepoch). It is subdivided in four ages (Aalenian, Bajocian, Bathonian and Callovian).
- Age
- Aalénien
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Callovian (166.1 +/-1.2 Ma)
- Name Origin
-
Named derived from the old spelling of Kellaways Bridge (UK), Wiltshire, 2 miles NE Chippenham.
- Rang
- chronostratigraphische Stufe / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Kurzbeschreibung
-
Last stage of the Middle Jurassic.
- Age
- Callovien
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Bathonian (168.3 +/-1.3 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.
- Rang
- chronostratigraphische Stufe / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Kurzbeschreibung
-
Third stage of the Middle Jurassic.
- Age
- Bathonien
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Bajocian (170.3 +/-1.4 Ma)
- Name Origin
-
Named after the town of Bayeux (Calvados, France) in Normandy.
- Rang
- chronostratigraphische Stufe / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Nomenclatorial Remarks
- <p>Latin: Bajocium</p>
- Kurzbeschreibung
-
Second stage of the Middle Jurassic.
- Age
- Bajocien
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Gaetani Oceanic Anoxic Event
- Name Origin
-
Named in recognition of Maurizio Gaetani's work on Jurassic sedimentary successions of the Lombardy Basin.
- Rang
- OAE
- Status
- informeller Begriff
- Kurzbeschreibung
-
Black shale interval locally developped at the transition betwenn the Rosso Ammonitico Lombardo and the Radiolarite Group.
- Age
- frühes Bajocien
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Aalenian (174.1 +/-1.0 Ma)
- Name Origin
-
Named after the town of Aalen (Germany), Baden-Württemberg
- Rang
- chronostratigraphische Stufe / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Kurzbeschreibung
-
First stage of the Middle Jurassic.
- Age
- Aalénien
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Early Jurassic (201.3 +/-0.2 Ma)
- Rang
- chronostratigraphische Epoche / geochronologische Serie
- Status
- gültiger formeller Begriff
- Kurzbeschreibung
-
The Early Jurassic is the first geochronologic subepoch of the Jurassic, starting with the Hettangian age (at the transition from the Late Triassic subepoch) and ending with the Toarcian age (at the transition to the Middle Jurassic subepoch). It is subdivided in four ages (Hettangian, Sinemurian, Pliensbachian and Toarcian).
- Age
- Hettangien
-
Toarcian (184.2 +/-0.3 Ma)
- Name Origin
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Named after the town of Thouars (Deux-Sèvres, France), south of Saumur. The protected stratotype lies in an old quarry. Its GSSP is located at Peniche (Portugal).
- Rang
- chronostratigraphische Stufe / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Nomenclatorial Remarks
- <p>Latin: Toarcium</p>
- Kurzbeschreibung
-
The Toarcian is the youngest geochronologic age of the Early Jurassic. Its base, at the transition from the Pliensbachian, is placed at the first appearance of the ammonite genus Eodactylites and the base of the Aalenian (first appearance of the ammonite genus Leioceras) defines its end.
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
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Late Toarcian
- Rang
- chronostratigraphische Sub-Stufe
- Status
- gültiger formeller Begriff
- Age
- spätes Toarcien
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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
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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
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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.
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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 / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Age
- Pliensbachien
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Domerian
- Name Origin
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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)
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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 / geochronologisches Alter
- 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 / Geochronologie
- Status
- obsoleter Begriff (nicht mehr verwendet)
- Kurzbeschreibung
-
Former chronostratigraphic subdivision corresponding to the Late Sinemurian substage.
- Age
- spätes Sinémurien
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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 / geochronologisches Alter
- Status
- gültiger formeller Begriff
- Kurzbeschreibung
-
First stage of the Jurassic.
- Age
- Hettangien