Triassic (251.902 +/- 0.024 Ma)
Back to Permian (298.90 +/-0.15 Ma)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
- Units at roof
References
- Definition
- (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
- In short
-
The Late Triassic is the last geochronologic subepoch of the Triassic, starting with the Carnian age (at the transition from the Middle Triassic subepoch) and ending with the Rhaetian age (at the transition to the Early Jurassic subepoch). It is subdivided in three ages (Carnian, Norian and Rhaetian).
- Age
- Carnian
-
Rhaetian (~ 208.5 Ma)
- Name Origin
-
Rhaetian Alps (Switzerland, Austria and Italy)
- Rank
- chronostratigraphic Stage
- Status
- valid formal name
- Age
- Rhaetian
-
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
-
Sevatian
- Rank
- chronostratigraphic Substage
- Status
- local name (informal)
- In short
-
Local substage corresponding to the Late Norian (Late Triassic).
- Age
- Norian
-
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
-
Lacian
- Rank
- chronostratigraphic Substage
- Status
- local name (informal)
- In short
-
Local substage corresponding to the Early Norian (Late Triassic).
- Age
- Norian
-
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
-
Middle Triassic (247.2 Ma)
- Rank
- chronostratigraphic Epoch
- Status
- valid formal name
- In short
-
The Middle Triassic is the middle geochronologic subepoch of the Triassic, starting with the Anisian age (at the transition from the Early Triassic subepoch) and ending with the Ladinian age (at the transition to the Late Triassic subepoch). It is officially subdivided in two ages (Anisian and Ladinian).
- Age
- Anisian
-
Ladinian (~ 242 Ma)
- Name Origin
-
Named after the Ladini people of the Dolomites, N Italy.
- Rank
- chronostratigraphic Stage
- Status
- valid formal name
- Age
- Ladinian
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
Early Triassic (251.902 +/-0.024 Ma)
- Rank
- chronostratigraphic Epoch
- Status
- valid formal name
- In short
-
The Early Triassic is the first geochronologic subepoch of the Triassic, starting with the Induan age (at the transition from the Lopingian subepoch) and ending with the Olenekian age (at the transition to the Middle Triassic subepoch). It is officially subdivided in two ages (Induan and Olenekian).
- Age
- Induan
-
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
-
Spathian
- Name Origin
-
Leonard Frank Spath (1882-1957), British geologist and paleontologist.
- Rank
- chronostratigraphic Substage
- Status
- local name (informal)
-
Smithian
- Name Origin
- James Perrin Smith (1864-1931), US geologist and paleontologist.
- Rank
- chronostratigraphic Substage
- Status
- local name (informal)
-
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
-
Dienerian
- Name Origin
-
Karl Diener (1862-1928), Austrian geologist, paleontologist and alpinist.
- Rank
- chronostratigraphic Substage
- Status
- local name (informal)
-
Griesbachian
- Name Origin
- Griesbach
- Rank
- chronostratigraphic Substage
- Status
- local name (informal)