Toarcian
Sign in to saveAlso known as Toarcian Age, Toarcian Stage
The Toarcian is, in the ICS' geologic timescale, an age and stage in the Early or Lower Jurassic. It spans the time between 184.2 Ma (million years ago) and 174.7 ±0.8 Ma. It follows the Pliensbachian and is followed by the Aalenian.
Key facts
- Geologic timespan.name
- Toarcian
- Geologic timespan.color
- Toarcian
- Geologic timespan.time_start
- 184.2
- Geologic timespan.time_start_uncertainty
- 0.3
- Geologic timespan.time_end
- 174.7
- Geologic timespan.time_end_uncertainty
- 0.8
- Geologic timespan.image_map
- File:180Ma Mollweide.png
- Geologic timespan.caption_map
- Map of Earth at 180 million years ago; the boundaries of present-day landmasses, countries, and states are superimposed as black outlines
- Geologic timespan.timeline
- Jurassic
- Geologic timespan.name_formality
- Formal
- Geologic timespan.celestial_body
- earth
- Geologic timespan.usage
- Global (ICS)
- Geologic timespan.timescales_used
- ICS Time Scale
- Geologic timespan.chrono_unit
- Age
- Geologic timespan.strat_unit
- Stage
- Geologic timespan.timespan_formality
- Formal
- Geologic timespan.lower_boundary_def
- Peniche, Portugal
- Geologic timespan.lower_gssp_location
- FAD of the Ammonite D. (E.) simplex
via Wikipedia infobox
Wikidata facts
Show 3 more facts
- sRGB color hex triplet
- 74D1F0
- start time
- 182700000-
- end time
- 174100000-
Sources (2)
via Wikidata · CC0
~2 min read
Article
4 sectionsContents
- Stratigraphic definitions
- References
- Sources
- External links
The Toarcian is, in the ICS' geologic timescale, an age and stage in the Early or Lower Jurassic. It spans the time between 184.2 Ma (million years ago) and 174.7 ±0.8 Ma. It follows the Pliensbachian and is followed by the Aalenian.
The Toarcian Age began with the Toarcian Oceanic Anoxic Event, a major anoxic event associated with marine extinctions and increased global temperatures that sets its fossil faunas apart from the previous Pliensbachian age. It is believed to have ended with a global cooling event known as the Comptum Cooling Event, although whether it represented a worldwide event is controversial.
On the map
4 mapped locations