Pridoli Epoch

Přídolí
Přídolí
423.0 ± 2.3 – 419.2 ± 3.2 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Paleogeography of the Pridoli, 420 Ma
Chronology
	Subdivision of the Silurian according to the ICS, as of 2021.; Vertical axis scale: millions of years ago.;

In the geologic timescale, the Přídolí Epoch (Czech pronunciation: [ˈpr̝̊iːdoliː]) is the uppermost subdivision of the Silurian Period, dated at between 423 ± 2.3 and 419.2 ± 3.2 mya (million years ago). The Přídolí Epoch succeeds the Ludfordian Stage and precedes the Lochkovian, the lowest of three stages within the Lower Devonian geological epoch. It is named after one locality at the Homolka a Přídolí nature reserve near the Prague suburb, Slivenec, in the Czech Republic.^[7] The GSSP is located within the Požáry Formation, overlying the Kopanina Formation. Přídolí is the old name of a cadastral field area.^[8]

EtymologyName formalityFormalName ratified1984Usage informationCelestial bodyEarthRegional usageGlobal (ICS)Time scale(s) usedICS Time ScaleDefinitionChronological unitEpochStratigraphic unitSeriesTime span formalityFormalLower boundary definitionFAD of the graptolite Monograptus parultimusLower boundary GSSPPožáry Section, Řeporyje District, Prague, Czech Republic
50°01′40″N 14°19′30″E / 50.0277°N 14.3249°ELower GSSP ratified1984^[4]^[5]Upper boundary definitionFAD of the graptolite Monograptus uniformisUpper boundary GSSPKlonk, Prague, Czech Republic
49°51′18″N 13°47′31″E / 49.8550°N 13.7920°EUpper GSSP ratified1972^[6]

The Šilalė Event, a negative carbon isotope excursion corresponding to an extinction event of conodonts, occurred during the early Pridoli.^[9]

References

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Přídolí
423.0 ± 2.3 – 419.2 ± 3.2 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Paleogeography of the Pridoli, 420 Ma
Chronology

Subdivision of the Silurian according to the ICS, as of 2021.^[3] Vertical axis scale: millions of years ago.