| Palaeos: Paleozoic | |
Silurian Period |
| Silurian Period | Wenlock |
| Page Back | Back: Llandovery | Back: Ordovician | Up: Silurian | Unit Home |
| Page Next | Next: Ludlow | Next: Devonian | Down: Sheinwoodian | Timescale |
|
Paleozoic Era Cambrian Period Ordovician Period Silurian Period Llandovery Epoch Wenlock Epoch Sheinwoodian Age Homerian Age Ludlow Epoch Pridoli Epoch Devonian Period Carboniferous Period Permian Period |
During the Wenlock the oldest known tracheophytes (true land plants), of the genus Cooksonia, appear. The complexity of slightly younger (Ludlow) Gondwana plants like Barragwanatha indicates either a much longer history for vascular plants, perhaps extending into the early Silurian or even Ordovician, or else a misdating of the Barragwanatha sediments.
|
|
|
|
|
|
|
|
Wenlock
|
Homerian |
latest |
Monograptus ludensis |
|
|
|
|
|||||
|
|
Gothograptus nassa |
|
|||
|
|
Crytograptus lundgreni | ||||
|
|
|||||
|
|
|
||||
|
|
|
|
 |
 |
 |
| Ateleaspis |
|
|
| Page Back | Unit Home | Page Up | Page Top | Page Next |
