Ludlow Epoch Explained

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.

See also

Notes and References

  1. Holland . C. . The State of Silurian Stratigraphy . Episodes . 1982 . 1982 . 3 . 21–23 . 10.18814/epiiugs/1982/v5i3/004 . 11 December 2020. free .
  2. Lucas . Sepncer . The GSSP Method of Chronostratigraphy: A Critical Review . Frontiers in Earth Science . 6 November 2018 . 6 . 191 . 10.3389/feart.2018.00191 . 2018FrEaS...6..191L . free .
  3. Holland . C. . Series and Stages of the Silurian System . Episodes . June 1985 . 8 . 2 . 101–103 . 10.18814/epiiugs/1985/v8i2/005 . 11 December 2020. free .