Lower Devonian
General info
Belongs to |
Devonian
|
Type | chronostratigraphy |
Rank | Series |
Scope | global |
Status | formal standard |
Age top (Ma) | 393.3 |
Age base (Ma) | 419.2 |
Age (Ma) |
Devonian
|
Index | D1 |
Alt. index | D1 |
Date changed | 2022-11-04 |
Reference | Content | Year1 | Pages | Remarks |
---|---|---|---|---|
Gradstein et al., 2004 |
2004
| 211 | ||
Gradstein et al., 2012 |
2012
| |||
Becker et al., 2020 |
2020
| 733-810 |
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