Information about Toarcian
The Toarcian Stage was the last faunal stage of the Early Jurassic period. It is usually used to cover the period from 183 Ma to 175 Ma (million years ago).
The Toarcian stage began with the Toarcian turnover, the extinction event that set it apart from the previous Pliensbachian stage. The Toarcian takes its name from the town of Thouars, just south of Saumur in the Loire Valley of France.
In Europe this period is also known as the Upper Lias Stage.
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The Toarcian stage began with the Toarcian turnover, the extinction event that set it apart from the previous Pliensbachian stage. The Toarcian takes its name from the town of Thouars, just south of Saumur in the Loire Valley of France.
In Europe this period is also known as the Upper Lias Stage.
| Jurassic period | ||
|---|---|---|
| Lower/Early Jurassic | Middle Jurassic | Upper/Late Jurassic |
| Hettangian | Sinemurian Pliensbachian | Toarcian | Aalenian | Bajocian Bathonian | Callovian | Oxfordian | Kimmeridgian Tithonian |
Faunal stages are subdivisions of rock layers used primarily by paleontologists who study fossils rather than by geologists who study rock formations. Typically, a faunal stage will consist of a series of rocks that contain similar fossils.
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Early Jurassic (in geology referred to as the Lower Jurassic, originally (and still in Europe) the "Lias") is the earliest of three epochs of the Jurassic period.
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Annum is a Latin noun meaning year. It is the accusative singular of the second declension masculine noun annus (nominative), anni (genitive) [1] .
As a unit of time, it is defined as exactly 365.
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As a unit of time, it is defined as exactly 365.
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The term Toarcian turnover, alternatively the Toarcian extinction, the Pliensbachian-Toarcian extinction, or the Early Jurassic extinction, refers to the wave of extinctions of that marked the end of the Pliensbachian stage and the start of the Toarcian stage
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An extinction event (also known as: mass extinction; extinction-level event, ELE) is a sharp decrease in the number of species in a relatively short period of time...... Click the link for more information.
The Pliensbachian (also known as Charmouthian) is a stage of the Early Jurassic Epoch. It spans the time between 189.6 ± 1.5 Ma and 183 ± 1.5 Ma (million years ago).
The stage takes its name from the town of Pliensbach, some 30 km east of Stuttgart in Germany.
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The stage takes its name from the town of Pliensbach, some 30 km east of Stuttgart in Germany.
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Commune of
Thouars
Château de La Trémoille in Thouars
Location
Longitude 00° 12' 51" W
Latitude 46° 58' 33" N
Administration
Country France
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Thouars
Château de La Trémoille in Thouars
Location
Longitude 00° 12' 51" W
Latitude 46° 58' 33" N
Administration
Country France
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Commune of
Saumur
The château at Saumur
City coat of arms from 1699 to 1985 City coat of arms since 1986
Location
Coordinates
Administration
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Saumur
The château at Saumur
City coat of arms from 1699 to 1985 City coat of arms since 1986
Location
Coordinates
Administration
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State Party France
Type Cultural
Criteria i, ii, iv
Reference 933
Region Europe and North America
Inscription History
Inscription 2000 (24th Session)
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Type Cultural
Criteria i, ii, iv
Reference 933
Region Europe and North America
Inscription History
Inscription 2000 (24th Session)
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Motto
Liberté, Égalité, Fraternité
"Liberty, Equality, Fraternity"
Anthem
"La Marseillaise"
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Liberté, Égalité, Fraternité
"Liberty, Equality, Fraternity"
Anthem
"La Marseillaise"
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The Jurassic Period is a major unit of the geologic timescale that extends from about 199.6 ± 0.6 Ma (million years ago) to 145.4 ± 4.0 Ma, the end of the Triassic to the beginning of the Cretaceous.
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Early Jurassic (in geology referred to as the Lower Jurassic, originally (and still in Europe) the "Lias") is the earliest of three epochs of the Jurassic period.
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The Middle Jurassic, called the Dogger in the European system of classification, is the second epoch of the Jurassic Period. It lasted from 180-154 million years ago.
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Paleogeograpgy
Pangaea began to separate into Laurasia and Gondwana and the Atlantic Ocean formed...... Click the link for more information.
Late Jurassic (or Malm) Epoch of the Jurassic Period is the unit of geologic time from 161.2 ± 4.0 to 145.5 ± 4.0 million years ago, which is preserved in Upper Jurassic strata.
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The Hettangian is the first stage of the Early Jurassic Epoch. It spans the time between 199.6 ± 0.6 Ma and 196.5 ± 1 Ma (million years ago). The stage follows the Rhaetian Stage of the Triassic Period.
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The Sinemurian is a stage of the Early Jurassic Epoch. It spans the time between 196.5 ± 2 Ma and 189.6 ± 1.5 Ma (million years ago).
The stage takes its name from the town of , near Sancerre in the upper Loire Valley.
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The stage takes its name from the town of , near Sancerre in the upper Loire Valley.
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The Pliensbachian (also known as Charmouthian) is a stage of the Early Jurassic Epoch. It spans the time between 189.6 ± 1.5 Ma and 183 ± 1.5 Ma (million years ago).
The stage takes its name from the town of Pliensbach, some 30 km east of Stuttgart in Germany.
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The stage takes its name from the town of Pliensbach, some 30 km east of Stuttgart in Germany.
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The Aalenian (IPA: /ɑːˈliːniən/) is a subdivision of the Middle Jurassic epoch of the geologic timescale that extends from about 175.6 Ma to about 171.6 Ma (million years ago).
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In the geologic timescale, the Bajocian is an age of the Middle Jurassic epoch of the Jurassic period of the Mesozoic era of the Phanerozoic eon. It lasted from approximately 171.6 Ma to around 167.7 Ma (million years ago).
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In the geologic timescale the Bathonian epoch is a stage during the Middle Jurassic, of the Mesozoic era of the Phanerozoic eon. It lasted from approximately 167.7 Ma to around 164.7 Ma (million years ago). The Bathonian age succeeds the Bajocian age and precedes the Callovian age.
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The Callovian is a stage on the geologic time scale occurring 164.7 ± 4.0 Ma to 161.2 ± 4.0 Ma (million years ago). It is the last stage of the Middle Jurassic.
The stage takes its name from an old spelling of Kellaways Bridge, 3 km north-east of Chippenham in Wiltshire in
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The stage takes its name from an old spelling of Kellaways Bridge, 3 km north-east of Chippenham in Wiltshire in
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The Oxfordian stage is the first stage of the Late Jurassic Epoch. It spans the time between 161.2 ± 4 Ma and 155.7 ± 4 Ma (million years ago).
The stage takes its name from the city of Oxford in England.
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The stage takes its name from the city of Oxford in England.
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The Kimmeridgian is a stage of the Late Jurassic Epoch. It spans the time between 155.7 ± 4 Ma and 150.8 ± 4 Ma (million years ago).
The stage takes its name from the village of Kimmeridge on the Dorset coast, England where the exposure is at its greatest extent.
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The stage takes its name from the village of Kimmeridge on the Dorset coast, England where the exposure is at its greatest extent.
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The Tithonian is the final stage of the Late Jurassic Epoch. It spans the time between 150.8 ± 4 Ma and 145.5 ± 4 Ma (million years ago). It is followed by the Berriasian stage of the Early Cretaceous Epoch.
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Herod_Archelaus
