Emsian
| Belongs to | Lower Devonian |
| Type | chronostratigraphy |
| Rank | Stage |
| Scope | global |
| Status | formal standard |
| Author | Yolkin et al., |
| Year | 1997 |
| Etymon | Ems river, western Germany |
| Age top (Ma) | 393.3 |
| Age base (Ma) | 407.6 |
| Index | d3 |
| Date added | 2003-04-03 |
| Date changed | 2022-11-04 |
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