Late Toarcian subage
180.4 - 174.7 Ma
The definition of this interval in the timescale Mesozoic Subages is taken from the following source:
- J. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 view
The bottom age has been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.
There are intervals in 4 timescales which overlap this one. show
This interval is used in the definition of 797 collections
A total of 2657 collections with 11337 occurrences lie within this time span
| International Chronostratigraphic Timescale | Mesozoic Subages | ||||
|---|---|---|---|---|---|
| Jurassic | Late Jurassic | Tithonian | Late Tithonian | Middle Tithonian | 145 |
| Early Tithonian | 146.3 * | ||||
| Kimmeridgian | Late Kimmeridgian | 149.2 | |||
| Early Kimmeridgian | 152.2 * | ||||
| Oxfordian | Late Oxfordian | Middle Oxfordian/Early Oxfordian | 154.8 | ||
| 157.9 * | |||||
| Middle Jurassic | Callovian | Late Callovian/Middle Callovian/Early Callovian | 161.5 | ||
| Bathonian | Late Bathonian/Middle Bathonian/Early Bathonian | 165.3 | |||
| Bajocian | Late Bajocian | 168.2 | |||
| Early Bajocian | 168.6 * | ||||
| Aalenian | Late Aalenian/Middle Aalenian/Early Aalenian | 170.9 | |||
| Early Jurassic | Toarcian | Late Toarcian | 174.7 | ||
| Middle Toarcian | 180.4 * | ||||
| Early Toarcian | 182.9 * | ||||
| Pliensbachian | Late Pliensbachian/Early Pliensbachian | 184.2 | |||
| Sinemurian | Late Sinemurian/Early Sinemurian | 192.9 | |||
| Hettangian | Late Hettangian/Middle Hettangian/Early Hettangian | 199.5 | |||
| 201.4 | |||||