Vinnels - Ludlow
Wenlock Limestone - Wenlock
Stockdale Beck - Llandovery
Silurian
GEOGRAPHY AND CLIMATE: North America and Eurasia join to form Caledonian Mountains, Continents flooded by shallow seas, limestone deposited.
TERRESTRIAL ANIMAL LIFE: Scorpions, Millipedes and possibly Eurypterid's come out of the water.
PLANT LIFE: Primitive psilopsid plants live at edges of water.
SEA LIFE: Marine invertebrates, Crinoids, Brachiopods, Trilobites, Nautiloids and Graptoites. Reefs built by tabulate Corals, Eurypterid's in brackish waters, Fish become abundant in seas and fresh waters. |
British Stratification Tables
Updated and correct from 2004 MYA=Million Years Ago from present
Silurianfishes by Joseph Smit (1836-1929) from Nebula to Man 1905 England
Wenlock
423 - 426 MYA |
| Homerian |
Much Wenlock Formation |
Edgton Member |
Wenlock Limestone |
Wenlock Edge
Wenlock Quarry
Shadwell Quarry
Mortimer Forest |
| Longville Member |
Tickwood Beds |
|
| Coralliferous Series |
Marloes Sands |
| Gray Sandstone Group |
Freshwater East |
| Aston Mudstone Formation |
Edgton Limestone Member |
|
| Coalbrookdale Formation |
Farley Member |
Wenlock Shales |
|
| Sheinwoodian |
Bromleys Mill Shale Formation |
|
|
| Coalbrookdale Formation |
Apedale |
Wenlock Shales |
|
| Buildwas Formation |
Wenlock Shales |
|
|
