Editing Jurassic (section)

==== Crocodylomorphs ====
[[File:Platysuchus multiscrobiculatus 1.JPG|thumb|[[Holotype]] specimen of ''[[Platysuchus]],'' a [[Teleosauridae|telosaurid]] [[thalattosuchia]]n]]
The Triassic–Jurassic extinction decimated [[pseudosuchia]]n diversity, with [[Crocodylomorpha|crocodylomorphs]], which originated during the early Late Triassic, being the only group of pseudosuchians to survive. All other pseudosuchians, including the herbivorous [[aetosaur]]s and carnivorous "[[rauisuchians]]", became extinct.<ref>{{Cite journal|last1=Allen|first1=Bethany J.|last2=Stubbs|first2=Thomas L.|last3=Benton|first3=Michael J.|last4=Puttick|first4=Mark N.|date=March 2019|editor-last=Mannion|editor-first=Philip|title=Archosauromorph extinction selectivity during the Triassic-Jurassic mass extinction|journal=Palaeontology|language=en|volume=62|issue=2|pages=211–224|doi=10.1111/pala.12399|bibcode=2019Palgy..62..211A |s2cid=55009185|doi-access=free|hdl=1983/e3fc2e40-c849-42ed-99fe-ea17fc26b2ec|hdl-access=free}}</ref> The morphological diversity of crocodylomorphs during the Early Jurassic was around the same as that of Late Triassic pseudosuchians, but they occupied different areas of morphospace, suggesting that they occupied different [[ecological niche]]s to their Triassic counterparts and that there was an extensive and rapid radiation of crocodylomorphs during this interval.<ref>{{Cite journal|last1=Toljagić|first1=Olja|last2=Butler|first2=Richard J.|date=2013-06-23|title=Triassic–Jurassic mass extinction as trigger for the Mesozoic radiation of crocodylomorphs|url= |journal=Biology Letters|language=en|volume=9|issue=3|pages=20130095|doi=10.1098/rsbl.2013.0095|issn=1744-9561|pmc=3645043|pmid=23536443}}</ref> While living [[crocodilia]]ns are mostly confined to an aquatic ambush predator lifestyle, Jurassic crocodylomorphs exhibited a wide variety of life habits. An unnamed [[Protosuchidae|protosuchid]] known from teeth from the Early Jurassic of Arizona represents the earliest known herbivorous crocodylomorph, an adaptation that appeared several times during the Mesozoic.<ref>{{Cite journal|last1=Melstrom|first1=Keegan M.|last2=Irmis|first2=Randall B.|date=July 2019|title=Repeated Evolution of Herbivorous Crocodyliforms during the Age of Dinosaurs|journal=Current Biology|language=en|volume=29|issue=14|pages=2389–2395.e3|doi=10.1016/j.cub.2019.05.076|pmid=31257139|s2cid=195699188|doi-access=free|bibcode=2019CBio...29E2389M }}</ref>

The [[Thalattosuchia]], a clade of predominantly marine crocodylomorphs, first appeared during the Early Jurassic and became a prominent part of marine ecosystems.<ref name="Stubbs-2021">{{Cite journal|last1=Stubbs|first1=Thomas L.|last2=Pierce|first2=Stephanie E.|last3=Elsler|first3=Armin|last4=Anderson|first4=Philip S. L.|last5=Rayfield|first5=Emily J.|last6=Benton|first6=Michael J.|date=2021-03-31|title=Ecological opportunity and the rise and fall of crocodylomorph evolutionary innovation|journal=Proceedings of the Royal Society B: Biological Sciences|volume=288|issue=1947|pages=20210069|doi=10.1098/rspb.2021.0069|pmid=33757349|pmc=8059953|s2cid=232326789}}</ref> Within Thalattosuchia, the [[Metriorhynchidae]] became highly adapted for life in the open ocean, including the transformation of limbs into flippers, the development of a tail fluke, and smooth, scaleless skin.<ref>{{Cite journal|last1=Spindler|first1=Frederik|last2=Lauer|first2=René|last3=Tischlinger|first3=Helmut|last4=Mäuser|first4=Matthias|date=2021-07-05|title=The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)|url=https://palaeo-electronica.org/content/2021/3399-metriorhynchid-skin|journal=Palaeontologia Electronica|language=English|volume=24|issue=2|pages=1–41|doi=10.26879/1099|issn=1094-8074|doi-access=free}}</ref> The morphological diversity of crocodylomorphs during the Early and Middle Jurassic was relatively low compared to that in later time periods and was dominated by terrestrial small-bodied, long-legged [[sphenosuchia]]ns, early [[crocodyliformes|crocodyliforms]] and thalattosuchians.<ref>{{Cite journal|last1=Irmis|first1=Randall B.|last2=Nesbitt|first2=Sterling J.|last3=Sues|first3=Hans-Dieter|date=2013|title=Early Crocodylomorpha|url=http://sp.lyellcollection.org/lookup/doi/10.1144/SP379.24|journal=Geological Society, London, Special Publications|language=en|volume=379|issue=1|pages=275–302|bibcode=2013GSLSP.379..275I|doi=10.1144/SP379.24|issn=0305-8719|s2cid=219190410}}</ref><ref name="Stubbs-2021" /> The [[Neosuchia]], a major group of crocodylomorphs, first appeared during the Early to Middle Jurassic. The Neosuchia represents the transition from an ancestrally terrestrial lifestyle to a freshwater aquatic ecology similar to that occupied by modern crocodilians.<ref name="Wilberg-2019">{{Cite journal|last1=Wilberg|first1=Eric W.|last2=Turner|first2=Alan H.|last3=Brochu|first3=Christopher A.|date=2019-01-24|title=Evolutionary structure and timing of major habitat shifts in Crocodylomorpha|url= |journal=Scientific Reports|language=en|volume=9|issue=1|pages=514|doi=10.1038/s41598-018-36795-1|pmid=30679529|pmc=6346023|bibcode=2019NatSR...9..514W|issn=2045-2322}}</ref> The timing of the origin of Neosuchia is disputed. The oldest record of Neosuchians has been suggested to be ''[[Calsoyasuchus]],'' from the Early Jurassic of Arizona, which in many analyses has been recovered as the earliest branching member of the neosuchian family [[Goniopholididae]], which radically alters times of diversification for crocodylomorphs. However, this placement has been disputed, with some analyses finding it outside Neosuchia, which would place the oldest records of Neosuchia in the Middle Jurassic.<ref name="Wilberg-2019" /> ''[[Razanandrongobe]]'' from the Middle Jurassic of Madagascar has been suggested to represent the oldest record of [[Notosuchia]], a primarily Gondwanan clade of mostly terrestrial crocodylomorphs, otherwise known from the Cretaceous and Cenozoic.<ref name="dalsasso2017">{{cite journal|last1=Dal Sasso|first1=C.|last2=Pasini|first2=G.|last3=Fleury|first3=G.|last4=Maganuco|first4=S.|year=2017|title=''Razanandrongobe sakalavae'', a gigantic mesoeucrocodylian from the Middle Jurassic of Madagascar, is the oldest known notosuchian|journal=PeerJ|volume=5|page=e3481|doi=10.7717/peerj.3481|pmc=5499610|pmid=28690926 |doi-access=free }}</ref>