Devonian
General info
| Belongs to |
Paleozoic
|
| Type | chronostratigraphy |
| Rank | System |
| Scope | global |
| Status | formal standard |
| Author | Adam Sedgwick, Roderick I Murchison |
| Year | 1839 |
| Etymon | Devon County, England |
| Age top (Ma) | 358.9 |
| Age base (Ma) | 419.2 |
| Age (Ma) |
Paleozoic
|
| Index | D |
| Alt. index | D |
| Date changed | 2022-11-04 |
| Stratigraphy | Index | Index add'l | Type | Rank | Scope | Belongs to | Age base (Ma) | Age top (Ma) | Age |
|---|---|---|---|---|---|---|---|---|---|
| Lower Devonian | D1 | D1 |
chronostratigraphy
|
Series
|
global
| Devonian | 419.2 | 393.3 |
Devonian
|
| Middle Devonian | D2 | D2 |
chronostratigraphy
|
Series
|
global
| Devonian | 393.3 | 382.7 |
Devonian
|
| Upper Devonian | D3 | D3 |
chronostratigraphy
|
Series
|
global
| Devonian | 382.7 | 358.9 |
Devonian
|
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