Jurassic - Revision history

Jmdonev at 19:01, 4 January 2019

2019-01-04T19:01:18Z

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	File:Stegosaurus BW.jpg\|Figure 7. Stegosaurus.<ref>WikiMedia Commons. "File:Stegosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Stegosaurus_BW.jpg</ref>		File:Stegosaurus BW.jpg\|Figure 7. Stegosaurus.<ref>WikiMedia Commons. "File:Stegosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Stegosaurus_BW.jpg</ref>
	File:Allosaurus BW.jpg\|thumb\|Figure 8. Allosaurus.<ref>WikiMedia Commons. "File:Allosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Allosaurus_BW.jpg</ref>		File:Allosaurus BW.jpg\|thumb\|Figure 8. Allosaurus.<ref>WikiMedia Commons. "File:Allosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Allosaurus_BW.jpg</ref>
	File:Archaeopteryx lithographica ~~(Berlin specimen)~~.jpg\|thumb\|Figure 9. Archaeopteryx fossil.<ref>WikiMedia Commons. "File:Archaeopteryx lithographica.jpg" Accessed Nov.18, 2018 [Online]. Available: https://commons.wikimedia.org/wiki/File:Archaeopteryx_lithographica.jpg</ref>		File:Archaeopteryx lithographica.jpg\|thumb\|Figure 9. Archaeopteryx fossil.<ref>WikiMedia Commons. "File:Archaeopteryx lithographica.jpg" Accessed Nov.18, 2018 [Online]. Available: https://commons.wikimedia.org/wiki/File:Archaeopteryx_lithographica (Berlin specimen).jpg</ref>
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Jmdonev at 18:53, 4 January 2019

2019-01-04T18:53:44Z

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	File:Stegosaurus BW.jpg\|Figure 7. Stegosaurus.<ref>WikiMedia Commons. "File:Stegosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Stegosaurus_BW.jpg</ref>		File:Stegosaurus BW.jpg\|Figure 7. Stegosaurus.<ref>WikiMedia Commons. "File:Stegosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Stegosaurus_BW.jpg</ref>
	File:Allosaurus BW.jpg\|thumb\|Figure 8. Allosaurus.<ref>WikiMedia Commons. "File:Allosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Allosaurus_BW.jpg</ref>		File:Allosaurus BW.jpg\|thumb\|Figure 8. Allosaurus.<ref>WikiMedia Commons. "File:Allosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Allosaurus_BW.jpg</ref>
	File:Archaeopteryx lithographica (Berlin specimen).jpg\|thumb\|Figure 9. Archaeopteryx fossil.<ref>WikiMedia Commons. "File:Archaeopteryx lithographica.jpg" Accessed Nov.18, 2018 [Online]. Available: https://commons.wikimedia.org/wiki/File:~~Archaeopteryx_lithographica_(Berlin_specimen)~~.jpg</ref>		File:Archaeopteryx lithographica (Berlin specimen).jpg\|thumb\|Figure 9. Archaeopteryx fossil.<ref>WikiMedia Commons. "File:Archaeopteryx lithographica.jpg" Accessed Nov.18, 2018 [Online]. Available: https://commons.wikimedia.org/wiki/File:Archaeopteryx_lithographica.jpg</ref>
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Jmdonev at 18:26, 4 January 2019

2019-01-04T18:26:05Z

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	File:Stegosaurus BW.jpg\|Figure 7. Stegosaurus.<ref>WikiMedia Commons. "File:Stegosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Stegosaurus_BW.jpg</ref>		File:Stegosaurus BW.jpg\|Figure 7. Stegosaurus.<ref>WikiMedia Commons. "File:Stegosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Stegosaurus_BW.jpg</ref>
	File:Allosaurus BW.jpg\|thumb\|Figure 8. Allosaurus.<ref>WikiMedia Commons. "File:Allosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Allosaurus_BW.jpg</ref>		File:Allosaurus BW.jpg\|thumb\|Figure 8. Allosaurus.<ref>WikiMedia Commons. "File:Allosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Allosaurus_BW.jpg</ref>
	File:Archaeopteryx lithographica (Berlin specimen).jpg\|thumb\|Figure 9. Archaeopteryx fossil.<ref>WikiMedia Commons. "File:Archaeopteryx lithographica ~~(Berlin specimen)~~.jpg" Accessed Nov.18, 2018 [Online]. Available: https://commons.wikimedia.org/wiki/File:Archaeopteryx_lithographica_(Berlin_specimen).jpg</ref>		File:Archaeopteryx lithographica (Berlin specimen).jpg\|thumb\|Figure 9. Archaeopteryx fossil.<ref>WikiMedia Commons. "File:Archaeopteryx lithographica.jpg" Accessed Nov.18, 2018 [Online]. Available: https://commons.wikimedia.org/wiki/File:Archaeopteryx_lithographica_(Berlin_specimen).jpg</ref>
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Jmdonev: 1 revision imported

2019-01-04T18:15:23Z

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2dev>Jmdonev at 17:26, 17 December 2018

2018-12-17T17:26:21Z

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[[Category:Done 2018-12-10]] [[Category: Rudi grade Ashley write]]
[[File:ICS Jurassic.jpg|thumb|right|Figure 1. ICS Jurassic timeline.<ref name=ICS12>International Commission on Stratigraphy."International Chronostratigraphic Chart v2016" Accessed Nov.18, 2018 [Online]. Available: https://www.britannica.com/science/Rhaetian-Stage</ref>]]
<onlyinclude>The '''Jurassic''' was the second geological [[Geologic time scale|period]] of the [[Mesozoic]] era, extending from approximately 201.3 million to 145.0 million years ago.</onlyinclude> It is divided into Upper, Middle, and Lower [[Geologic epoch|epochs]].<ref name=ICS>International Commission on Stratigraphy."International Chronostratigraphic Chart v2018" Accessed Nov.8, 2018 [Online]. Available: http://www.stratigraphy.org/index.php/ics-chart-timescale</ref> The name "Jurassic" was derived from two previous names for rock layers of Jurassic age. Prussian scientist Alexander von Humboldt was studying a series of carbonate rock deposits in 1799 and named them the "Jura Kalkstein". In 1829, Alexandre Brongniart, a French scientist, used the term "Terrains Jurassiques" which encompassed the Jura Kalkstein rocks and several other rock series. The time period encompassing these rock layers was eventually named the "Jurassic"<ref name=GTS>Gradstein, F. M. "The Geologic Time Scale 2012". Volume 2. 1st ed. Amsterdam ; Boston: Elsevier, 2012.</ref>

Ammonites were a major animal of the Jurassic, experiencing a major diversification. Large marine reptiles were also developing, some of the more famous including the long neck plesiosaurs (Figure 3), short-necked pliosaurs (Figure 4), and dolphin-like ichthyosaurs (Figure 5).<ref name=GTS/> On land, dinosaurs were fully dominating. The sauropods (long neck dinosaurs - famous examples include ''Diplodocus'' (Figure 6), ''Brachiosaurus'', and ''Apatosaurus'') were the largest land animals to ever exist. Stegosaurs (Figure 7) and the famous carnivore, ''Allosaurus'' (Figure 8), also existed at this time. Pterosaurs and early birds, including ''Archaeopteryx'' (Figure 9), were beginning to take to the sky. Upper Jurassic shales eventually provide almost half of today's [[oil]] and gas [[source rock]]s.<ref name=UCB>University of California, Museum of Paleontology."The Jurassic Period" Accessed Nov.18, 2018 [Online]. Available: http://www.ucmp.berkeley.edu/mesozoic/jurassic/jurassic.php</ref>

[[File:Europasaurus holgeri Scene 2.jpg|400 px|thumb|center|Figure 2. Artisit rendition of Jurassic life.<ref>WikiMedia Commons. "File:Europasaurus holgeri Scene 2.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Europasaurus_holgeri_Scene_2.jpg</ref>]]

<gallery mode=packed caption="Marine Animals" widths="300px" heights="100px" >
File:Muraenosaurus l2.jpg|FIgure 3. Plesiosaurs.<ref>WikiMedia Commons. "File:Muraenosaurus l2.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Muraenosaurus_l2.jpg</ref>
File:Leedsi&Liopl DB.jpg|Figure 4. A Pliosaurus (right) and a Leedsichthys.<ref>WikiMedia Commons. "File:Leedsi&Liopl DB.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Leedsi%26Liopl_DB.jpg</ref>
File:Fischsaurier fg01.jpg|Figure 5. Ichthyosaurus fossil.<ref>WikiMedia Commons. "File:Fischsaurier fg01.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Fischsaurier_fg01.jpg</ref>
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<gallery mode=packed caption="Terrestrial Animals" widths="300px" heights="200px" >
File:Diplodocus BW.jpg|Figure 6. Diplodocus.<ref>WikiMedia Commons. "File:Diplodocus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Diplodocus_BW.jpg</ref>
File:Stegosaurus BW.jpg|Figure 7. Stegosaurus.<ref>WikiMedia Commons. "File:Stegosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Stegosaurus_BW.jpg</ref>
File:Allosaurus BW.jpg|thumb|Figure 8. Allosaurus.<ref>WikiMedia Commons. "File:Allosaurus BW.jpg" Accessed Nov.18, 2018 [Online]. Available: https://en.wikipedia.org/wiki/File:Allosaurus_BW.jpg</ref>
File:Archaeopteryx lithographica (Berlin specimen).jpg|thumb|Figure 9. Archaeopteryx fossil.<ref>WikiMedia Commons. "File:Archaeopteryx lithographica (Berlin specimen).jpg" Accessed Nov.18, 2018 [Online]. Available: https://commons.wikimedia.org/wiki/File:Archaeopteryx_lithographica_(Berlin_specimen).jpg</ref>
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The Pangea [[supercontinent]] fully split by the Middle Jurassic, allowing for the development of unique biozones.<ref name=GTS/> Wider variations within species developed as they adapted to more varied environments. There were not any major landmasses over either the North or South Poles at this time and no evidence of any [[glaciation]] had been found.

[[File:ChronostratChart2018-08.jpg|700px|thumb|center|Figure 10. The ICS Chronostratigraphic Chart<ref name=ICS/>]]

==For Further Reading==
*[[Geologic time scale]]
*[[Geologic period]]
*[[Supercontinent]]
*[[Oil]]
*[[Stratigraphy]]
*Or explore a [[Special:Random|random page]]

==References==
{{reflist}}
[[Category:Uploaded]]