Lochkovian
Belongs to | Lower Devonian |
Type | chronostratigraphy |
Rank | Stage |
Scope | global |
Status | formal standard |
Author | Martinsson |
Year | 1977 |
Etymon | Lochkov, city in Czech Republic |
Age top (Ma) | 410.8 |
Age base (Ma) | 419.2 |
Age (Ma) | Devonian |
Index | d1 |
Date changed | 2022-11-04 |
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