Silurian
Silurian
| Hierarchy: | Phanerozoic Paleozoic Silurian |
|---|---|
| Classification: | Period (as per International Commission on Stratigraphy) |
| Top: | 419.2 ± 3.2 Ma |
| Base: | 443.8 ± 1.5 Ma |
| Preceeds: | Devonian Early/Lower Devonian Lochkovian |
| Follows: | Ordovician Late/Upper Ordovician Hirnantian |
| Primary Divisions: | PridoliLudlowWenlockLlandovery |
| FGDC code: | S |
First Vascular plants (the rhyniophytes and their relatives), first millipedes and arthropleurids on land.
First jawed fishes, as well as many armoured jawless fish, populate the seas. Sea-scorpions reach large size. Tabulate and rugose corals, brachiopods (Pentamerida,Rhynchonellida, etc.), and crinoids all abundant.
Trilobites and mollusks diverse; graptolites not as varied.
Beginning of Caledonian Orogeny for hills in England, Ireland, Wales, Scotland, and the Scandinavian Mountains. Also continued into Devonian period as the Acadian Orogeny, above.
Taconic Orogeny tapers off.
Lachlan Orogeny on Australian continent tapers off.
First jawed fishes, as well as many armoured jawless fish, populate the seas. Sea-scorpions reach large size. Tabulate and rugose corals, brachiopods (Pentamerida,Rhynchonellida, etc.), and crinoids all abundant.
Trilobites and mollusks diverse; graptolites not as varied.
Beginning of Caledonian Orogeny for hills in England, Ireland, Wales, Scotland, and the Scandinavian Mountains. Also continued into Devonian period as the Acadian Orogeny, above.
Taconic Orogeny tapers off.
Lachlan Orogeny on Australian continent tapers off.
Geologic Events
| Event Name | Type | Age | Area |
|---|---|---|---|
| Ordovician–Silurian extinction events (concludes) | Mass Extinction Event | ~455 - ~430 Ma | Global |
| Caledonian orogeny (concludes) | Orogeny | ~505 - ~400 Ma | Europe |
Overview of geological time
List all geological events
