Ludlow | |
Color: | Ludlow |
Time Start: | 427.4 |
Time Start Uncertainty: | 0.5 |
Time End: | 423.0 |
Time End Uncertainty: | 2.3 |
Timeline: | Silurian |
Name Formality: | Formal |
Name Accept Date: | 1980[1] |
Celestial Body: | earth |
Usage: | Global (ICS) |
Timescales Used: | ICS Time Scale |
Chrono Unit: | Epoch |
Strat Unit: | Series |
Timespan Formality: | Formal |
Lower Boundary Def: | FAD of the Graptolite Saetograptus (Colonograptus) varians |
Lower Gssp Location: | Pitch Coppice, Ludlow, U.K. |
Lower Gssp Accept Date: | 1980 |
Upper Boundary Def: | FAD of the Graptolite Monograptus parultimus. |
Upper Gssp Location: | Požáry Section, Prague-Řeporyje, Czech Republic |
Upper Gssp Accept Date: | 1984[2] [3] |
In the geological timescale, the Ludlow Epoch (from 427.4 ± 0.5 million years ago to 423.0 ± 2.3 million years ago) occurred during the Silurian Period, after the end of the Homerian Age. It is named for the town of Ludlow in Shropshire, England.
The Ludlow Epoch is subdivided into two stages: Gorstian and Ludfordian.