Pridoli epoch

Přídolí
	423.0 ± 2.3 – 419.2 ± 3.2 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Chronology
	Epochs in the Silurian -444 — – -442 — – -440 — – -438 — – -436 — – -434 — – -432 — – -430 — – -428 — – -426 — – -424 — – -422 — – -420 — – -418 — P ; a ; l ; e ; o ; z ; o ; i ; c O S; i; l; u; r; i; a; n D Late O L; l; a; n; d; o; v; e; r; y W; e; n; l; o; c; k L; u; d; l; o; w Přídolí Early D Rhuddanian Aeronian Telychian Sheinwoodian Homerian Gorstian Ludfordian ← Lau event ← Mulde event[1] ← Ireviken; event[2] Epochs of the Silurian Period. ; Axis scale: millions of years ago.;
Etymology
Name formality	Formal
Name ratified	1984
Usage Information
Celestial body	Earth
Regional Usage	Global (ICS)
Time scale(s) used	ICS Time Scale
Definition
Chronological unit	Epoch
Stratigraphic unit	Series
Time span formality	Formal
Lower boundary definition	FAD of the Graptolite Monograptus parultimus.
Lower boundary GSSP	Požáry Section, Řeporyje District, Prague, Czechia; 50.0277°N 14.3249°E
GSSP ratified	1984[3][4]
Upper boundary definition	FAD of the Graptolite Monograptus uniformis
Upper boundary GSSP	Klonk, Prague, Czechia; 49.8550°N 13.7920°E
GSSP ratified	1972[5]

In the geologic timescale, the Přídolí epoch 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, 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.[6] Přídolí is the old name of a cadastral field area.[7]

Palaeontology

Arthropods

Arthropods of the Pridoli
Taxa	Presence	Location	Description	Images
Brontoscorpio	Gorstian-Pridoli	Trimpley, Worcestershire, UK

Bony fish

Bony fish of the Fammenian
Taxa	Presence	Location	Description	Images
Andreolepis				Guiyu oneiros Psarolepis
Guiyu
Lophosteus
Psarolepis

References

Jeppsson, L.; Calner, M. (2007). "The Silurian Mulde Event and a scenario for secundo—secundo events". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 93 (02): 135–154. doi:10.1017/S0263593300000377.
Munnecke, A.; Samtleben, C.; Bickert, T. (2003). "The Ireviken Event in the lower Silurian of Gotland, Sweden-relation to similar Palaeozoic and Proterozoic events". Palaeogeography, Palaeoclimatology, Palaeoecology. 195 (1): 99–124. doi:10.1016/S0031-0182(03)00304-3.
Lucas, Sepncer (6 November 2018). "The GSSP Method of Chronostratigraphy: A Critical Review". Frontiers in Earth Science. doi:10.3389/feart.2018.00191. Retrieved 11 December 2020.
Holland, C. (June 1985). "Series and Stages of the Silurian System" (PDF). Episodes. 8: 101–103. doi:10.18814/epiiugs/1985/v8i2/005. Retrieved 11 December 2020.
Chlupáč, Ivo; Hladil, Jindrich (January 2000). "The global stratotype section and point of the Silurian-Devonian boundary". CFS Courier Forschungsinstitut Senckenberg. Retrieved 7 December 2020.
Gradstein, Felix M.; Ogg, James G.; Smith, Alan G. (2004). A Geologic Time Scale 2004. ISBN 9780521786737.
Manda, Štěpán; Frýda, Jiří (2010). "Silurian-Devonian boundary events and their influence on cephalopod evolution: evolutionary significance of cephalopod egg size during mass extinctions". Bulletin of Geosciences. 85 (3): 513–40. doi:10.3140/bull.geosci.1174.

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[Jeppsson2007-1] Jeppsson, L.; Calner, M. (2007). "The Silurian Mulde Event and a scenario for secundo—secundo events". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 93 (02): 135–154. doi:10.1017/S0263593300000377.

[Munnecke2003-2] Munnecke, A.; Samtleben, C.; Bickert, T. (2003). "The Ireviken Event in the lower Silurian of Gotland, Sweden-relation to similar Palaeozoic and Proterozoic events". Palaeogeography, Palaeoclimatology, Palaeoecology. 195 (1): 99–124. doi:10.1016/S0031-0182(03)00304-3.

[3] Lucas, Sepncer (6 November 2018). "The GSSP Method of Chronostratigraphy: A Critical Review". Frontiers in Earth Science. doi:10.3389/feart.2018.00191. Retrieved 11 December 2020.

[4] Holland, C. (June 1985). "Series and Stages of the Silurian System" (PDF). Episodes. 8: 101–103. doi:10.18814/epiiugs/1985/v8i2/005. Retrieved 11 December 2020.

[5] Chlupáč, Ivo; Hladil, Jindrich (January 2000). "The global stratotype section and point of the Silurian-Devonian boundary". CFS Courier Forschungsinstitut Senckenberg. Retrieved 7 December 2020.

[a2004-6] Gradstein, Felix M.; Ogg, James G.; Smith, Alan G. (2004). A Geologic Time Scale 2004. ISBN 9780521786737.

[7] Manda, Štěpán; Frýda, Jiří (2010). "Silurian-Devonian boundary events and their influence on cephalopod evolution: evolutionary significance of cephalopod egg size during mass extinctions". Bulletin of Geosciences. 85 (3): 513–40. doi:10.3140/bull.geosci.1174.