Stratigraphy
Telychian
Belongs to | Llandovery |
Type | chronostratigraphy |
Rank | Stage |
Original rank | lade |
Scope | global |
Status | formal standard |
Etymon | Pen-Ian-Telych Farm, Llandovery area |
Age top (Ma) | 433.4 |
Age base (Ma) | 438.5 |
Date added | 2003-04-02 |
Date changed | 2022-11-04 |
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