In the geologic timescale, the Přídolí Epoch () is the uppermost subdivision of the

Silurian Period The Silurian ( ) is a geologic period and system spanning 23.5 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the third and shortest period of t ...

, dated at between 423 ± 2.3 and 419.2 ± 3.2 mya (million years ago). The Přídolí Epoch succeeds the

Ludfordian In the geologic timescale, the Ludfordian is the upper of two chronostratigraphic stages within the Ludlow Series. Its age is the late Silurian Period, and within both the Palaeozoic Era and Phanerozoic Eon. The rocks assigned to the Ludford ...

Stage and precedes the

Lochkovian The Lochkovian is one of three faunal stages in the Early Devonian Epoch. It lasted from 419.2 ± 3.2 million years ago to 410.8 ± 2.8 million years ago. It marked the beginning of the Devonian Period, and was followed by the Pragian Stage. It is ...

, the lowest of three stages within the

Lower Devonian The Early Devonian is the first of three epochs comprising the Devonian period, corresponding to the Lower Devonian series. It lasted from and began with the Lochkovian Stage , which was followed by the Pragian from and then by the Emsian, whic ...

geological epoch The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronolo ...

. It is named after one locality at the ''

Homolka a Přídolí Homolka is a surname of Czech origin. Notable people with the surname include: * Karla Homolka Karla Leanne Homolka (born May 4, 1970), also known as Karla Leanne Teale, Leanne Teale and Leanne Bordelais, is a Canadian serial killer who acted a ...

nature reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, funga, or features of geologic ...

near the

Prague Prague ( ; ) is the capital and List of cities and towns in the Czech Republic, largest city of the Czech Republic and the historical capital of Bohemia. Prague, located on the Vltava River, has a population of about 1.4 million, while its P ...

suburb,

Slivenec Slivenec is a municipal district (''městská část'') in Prague, Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria t ...

, in the

Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south ...

. The GSSP is located within the Požáry Formation, overlying the

Kopanina Formation Kopanina may refer to the following places in Poland: *Kopanina, part of the Poznań-Grunwald, Grunwald district of Poznań *Kopanina, Leszno County in Greater Poland Voivodeship (west-central Poland) *Kopanina, Szamotuły County in Greater Poland V ...

. Přídolí is the old name of a

cadastral A cadastre or cadaster ( ) is a comprehensive recording of the real estate or real property's metes and bounds, metes-and-bounds of a country.Jo Henssen, ''Basic Principles of the Main Cadastral Systems in the World,'/ref> Often it is represente ...

field area. The

Šilalė Event The Šilalė Event was an extinction event affecting conodonts during the Přídolí, the final stage of the Silurian period. Timing The Šilalė Event, first identified in the Milaičiai-103 core in southwestern Lithuania, is marked by a negativ ...

, a negative carbon isotope excursion corresponding to an extinction event of

conodonts Conodonts, are an extinct group of marine jawless vertebrates belonging to the Class (biology), class Conodonta (from Ancient Greek κῶνος (''kōnos''), meaning "cone", and ὀδούς (''odoús''), meaning "tooth"). They are primarily known ...

, occurred during the early Pridoli. Gondwana 420 Ma

References

Silurian geochronology Geological epochs {{Geochronology-stub