Ludlow Epoch: Difference between revisions

Ludlow
Ludlow
427.4 ± 0.5 – 423.0 ± 2.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Chronology
←	Lau event
←	Mulde event
←	Ireviken event
	Subdivision of the Silurian according to the ICS, as of 2021.; Vertical axis scale: millions of years ago.;
Etymology
Name formality	Formal
Name ratified	1980
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 Saetograptus (Colonograptus) varians
Lower boundary GSSP	Pitch Coppice, Ludlow, U.K.; 52°21′33″N 2°46′38″W / 52.3592°N 2.7772°W
Lower GSSP ratified	1980
Upper boundary definition	FAD of the Graptolite Monograptus parultimus.
Upper boundary GSSP	Požáry Section, Prague-Řeporyje, Czech Republic; 50°01′40″N 14°19′30″E / 50.0277°N 14.3249°E
Upper GSSP ratified	1984

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Latest revision as of 14:53, 26 June 2024

In the geological timescale, the Ludlow Epoch (from 427.4 ± 0.5 million years ago to 423.0 ± 2.3 million years ago) occurred during the Silurian Period, after the end of the Homerian Age. It is named for the town of Ludlow in Shropshire, England.

The Ludlow Epoch is subdivided into two stages: Gorstian and Ludfordian.

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.
^ "Chart/Time Scale". www.stratigraphy.org. International Commission on Stratigraphy.
^ ^a ^b Holland, C. (1982). "The State of Silurian Stratigraphy" (PDF). Episodes. 1982 (3): 21–23. doi:10.18814/epiiugs/1982/v5i3/004. Retrieved 11 December 2020.
^ Lucas, Sepncer (6 November 2018). "The GSSP Method of Chronostratigraphy: A Critical Review". Frontiers in Earth Science. 6: 191. Bibcode:2018FrEaS...6..191L. doi:10.3389/feart.2018.00191.
^ Holland, C. (June 1985). "Series and Stages of the Silurian System" (PDF). Episodes. 8 (2): 101–103. doi:10.18814/epiiugs/1985/v8i2/005. Retrieved 11 December 2020.

This geochronology article is a stub. You can help Wikipedia by expanding it.

[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] "Chart/Time Scale". www.stratigraphy.org. International Commission on Stratigraphy.

[silurianState-4] Holland, C. (1982). "The State of Silurian Stratigraphy" (PDF). Episodes. 1982 (3): 21–23. doi:10.18814/epiiugs/1982/v5i3/004. Retrieved 11 December 2020.

[5] Lucas, Sepncer (6 November 2018). "The GSSP Method of Chronostratigraphy: A Critical Review". Frontiers in Earth Science. 6: 191. Bibcode:2018FrEaS...6..191L. doi:10.3389/feart.2018.00191.

[6] Holland, C. (June 1985). "Series and Stages of the Silurian System" (PDF). Episodes. 8 (2): 101–103. doi:10.18814/epiiugs/1985/v8i2/005. Retrieved 11 December 2020.

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@@ Line 1: / Line 1: @@
-{{short description|3rd series of the Silurian}}
+{{Short description|3rd series of the Silurian}}
+{{Infobox geologic timespan
-{{Geological epoch
+| name                         = Ludlow
-|color=ludlow
-|title=Ludlow
+| color                        = Ludlow
+| time_start                   = 427.4
-|start={{period start|{{{period|ludlow}}}}}
+| time_start_uncertainty       = 0.5
-|stop={{period end|{{{period|ludlow}}}}}
+| time_end                     = 423.0
+| time_end_uncertainty         = 2.3
+| image_map                    =
+| caption_map                  =
+| image_outcrop                =
+| caption_outcrop              =
+| image_art                    =
+| caption_art                  =
+<!--Chronology-->
+| timeline                     = Silurian
+<!--Etymology-->
+| name_formality               = Formal
+| name_accept_date             = 1980<ref name="silurianState">{{cite journal |last1=Holland |first1=C. |title=The State of Silurian Stratigraphy |journal=Episodes |date=1982 |volume=1982 |issue=3 |pages=21–23 |doi=10.18814/epiiugs/1982/v5i3/004 |url=https://stratigraphy.org/gssps/files/sheinwoodian-ludfordian.pdf |access-date=11 December 2020|doi-access=free }}</ref>
+| alternate_spellings          =
+| synonym1                     =
+| synonym1_coined              =
+| synonym2                     =
+| synonym2_coined              =
+| synonym3                     =
+| synonym3_coined              =
+| nicknames                    =
+| former_names                 =
+| proposed_names               =
+<!--Usage Information-->
+| celestial_body               = earth
+| usage                        = Global ([[International Commission on Stratigraphy|ICS]])
+| timescales_used              = ICS Time Scale
+| formerly_used_by             =
+| not_used_by                  =
+<!--Definition-->
+| chrono_unit                  = Epoch
+| strat_unit                   = Series
+| proposed_by                  =
+| timespan_formality           = Formal
+| lower_boundary_def           = [[First appearance datum|FAD]] of the [[Graptolite]] ''[[Saetograptus|Saetograptus (Colonograptus) varians]]''
+| lower_gssp_location          = [[Pitch Coppice]], [[Ludlow]], [[United Kingdom|U.K.]]
+| lower_gssp_coords            = {{Coord|52.3592|N|2.7772|W|display=inline}}
+| lower_gssp_accept_date       = 1980<ref name="silurianState"/>
+| upper_boundary_def           = FAD of the Graptolite ''[[Monograptus|Monograptus parultimus]]''.
+| upper_gssp_location          = [[Požáry Section]], [[Prague]]-[[Řeporyje]], [[Czech Republic]]
+| upper_gssp_coords            = {{Coord|50.0277|N|14.3249|E|display=inline}}
+| upper_gssp_accept_date       = 1984<ref>{{cite journal |last1=Lucas |first1=Sepncer |title=The GSSP Method of Chronostratigraphy: A Critical Review |journal=Frontiers in Earth Science |date=6 November 2018 |volume=6 |page=191 |doi=10.3389/feart.2018.00191 |bibcode=2018FrEaS...6..191L |doi-access=free }}</ref><ref>{{cite journal |last1=Holland |first1=C. |title=Series and Stages of the Silurian System |journal=Episodes |date=June 1985 |volume=8 |issue=2 |pages=101–103 |doi=10.18814/epiiugs/1985/v8i2/005 |url=https://timescalefoundation.org/references/Silurian1.pdf |access-date=11 December 2020|doi-access=free }}</ref>
+<!--Atmospheric and Climatic Data-->
+| o2                           =
+| co2                          =
+| temp                         =
+| sea_level                    =
 }}
-In the [[geological timescale]], the '''Ludlow epoch''' (from 427.4 ± 0.5 million years ago to 423.0 ± 2.3 million years ago) occurred during the [[Silurian]] period, after the end of the [[Homerian]] age. It is named for the town of [[Ludlow]] in [[Shropshire]], [[England]].
+In the [[geological timescale]], the '''Ludlow Epoch''' (from 427.4 ± 0.5 million years ago to 423.0 ± 2.3 million years ago) occurred during the [[Silurian]] Period, after the end of the [[Homerian]] Age. It is named for the town of [[Ludlow]] in [[Shropshire]], [[England]].
-The Ludlow epoch is subdivided into two stages: [[Gorstian]] and [[Ludfordian]].
+The Ludlow Epoch is subdivided into two stages: [[Gorstian]] and [[Ludfordian]].
-== Paleontology ==
-=== Arthropods ===
-{| class="wikitable" align="center"
-|-
-! colspan="5" align="center" | [[Arthropods]] of the Ludlow
-|-
-! Taxa !! Presence !! Location !! Description !! Images
-|-
-| ''[[Arctinurus]]''
-| [[Wenlock epoch]] to Ludlow epoch
-| Europe and North America
-| Large (up to {{convert|30|cm|in}}) trilobite
-| [[File:Arctinurus boltoni.jpg|center|150px]]
-|-
-|}
 ==See also==
@@ Line 30: / Line 61: @@
 ==References==
-{{reflist}}
+{{Reflist}}
+{{Silurian footer}}
 {{Geological history|p|p}}
+{{Authority control}}
 [[Category:Ludlow epoch| ]]
 [[Category:Silurian geochronology|*03]]
 [[Category:Geological epochs]]
-[[Category:Ludlow first appearances| ]]

Latest revision as of 14:53, 26 June 2024

See also

References

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