Turonian
Sign in to saveThe Turonian is, in the ICS' geologic timescale, the second age in the Late Cretaceous Epoch, or a stage in the Upper Cretaceous Series. It spans the time between 93.9 ± 0.2 Ma and 89.8 ± 0.3 Ma (million years ago). The Turonian is preceded by the Cenomanian Stage and underlies the Coniacian Stage.
Key facts
- Geologic timespan.name
- Turonian
- Geologic timespan.color
- Turonian
- Geologic timespan.time_start
- 93.9
- Geologic timespan.time_start_uncertainty
- 0.2
- Geologic timespan.time_end
- 89.8
- Geologic timespan.time_end_uncertainty
- 0.3
- Geologic timespan.image_map
- LateCretaceousMap.jpg
- Geologic timespan.caption_map
- Paleogeography of the late Turonian (90 Ma), showing the high sea level at the time
- Geologic timespan.timeline
- Cretaceous
- 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
- FAD of the Ammonite Watinoceras devonense
- Geologic timespan.lower_gssp_location
- Rock Canyon, Colorado, USA
via Wikipedia infobox
Article
5 sectionsContents
- Stratigraphic definition
- Subdivision
- References
- Literature
- External links
The Turonian is, in the ICS' geologic timescale, the second age in the Late Cretaceous Epoch, or a stage in the Upper Cretaceous Series. It spans the time between 93.9 ± 0.2 Ma and 89.8 ± 0.3 Ma (million years ago). The Turonian is preceded by the Cenomanian Stage and underlies the Coniacian Stage.
At the beginning of the Turonian an oceanic anoxic event (OAE 2) took place, also referred to as the Cenomanian-Turonian boundary event or the "Bonarelli Event". Sea level fall took place in the latter part of the Turonian from the highstand at the beginning of the Turonian.