Pridoli Epoch

EtymologyName formalityFormalName ratified1984Usage informationCelestial bodyEarthRegional usageGlobal (ICS)Time scale(s) usedICS Time ScaleDefinitionChronological unitEpochStratigraphic unitSeriesTime span formalityFormalLower boundary definitionFAD of the graptoliteMonograptus parultimusLower boundary GSSP, Řeporyje District, Prague, Czech Republic
50°01′40″N14°19′30″E / 50.0277°N 14.3249°E / 50.0277; 14.3249Lower GSSP ratified1984Upper boundary definitionFAD of the graptolite Monograptus uniformisUpper boundary GSSPKlonk, Prague, Czech Republic
49°51′18″N13°47′31″E / 49.8550°N 13.7920°E / 49.8550; 13.7920Upper GSSP ratified1972

In the geologic timescale, the Přídolí Epoch (Czech pronunciation:) is the fourth and latest epoch of the Silurian Period, corresponding to the Přídolí Series, the uppermost subdivision of the Silurian System. It is dated at between 422.7 ± 1.6 and 419.62 ± 1.36 mya (million years ago). The Přídolí Epoch succeeds the Ludfordianage of the Ludlow epoch and precedes the Lochkovian, the earliest of three ages within the Early Devoniangeological epoch. It is named after one locality at the nature reserve near the Prague suburb, Slivenec, in the Czech Republic. The GSSP is located within the , overlying the . Přídolí is the old name of a cadastral field area.

The Šilalė Event, a negative carbon isotope excursion corresponding to an extinction event of conodonts, occurred during the early Přídolí.