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== Taxonomía e filoxenia ==
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Historicamente, all known living and extinct crocodiles were indiscriminately lumped into the [[order (biology)|order]] Crocodilia. However, beginning in the late 1980s, many scientists began restricting the order Crocodilia to the living species and close extinct relatives such as ''[[Mekosuchus]]''. The various other groups that had previously been known as Crocodilia were renamed Crocodylomorpha and the slightly more restricted [[Crocodyliformes]].<ref name=martin&benton2008>{{cite journal | last1 = Martin | first1 = J.E. | last2 = Benton | first2 = M.J. | year = 2008 | title = Crown Clades in Vertebrate Nomenclature: Correcting the Definition of Crocodylia | url = | journal = Systematic Biology | volume = 57 | issue = 1| pages = 173–181 | doi=10.1080/10635150801910469 | pmid=18300130}}</ref> Crocodylomorpha has been given the rank of [[superorder]] in some 20th and 21st century studies.<ref>{{Cite journal | last1 = Parrilla-Bel | first1 = J. | last2 = Young | first2 = M. T. | last3 = Moreno-Azanza | first3 = M. | last4 = Canudo | first4 = J. I. | editor1-last = Butler | editor1-first = Richard J | title = The First Metriorhynchid Crocodylomorph from the Middle Jurassic of Spain, with Implications for Evolution of the Subclade Rhacheosaurini | doi = 10.1371/journal.pone.0054275 | journal = PLoS ONE | volume = 8 | pages = e54275 | year = 2013 | pmid = 23372699| pmc = 3553084}}</ref>▼
 
▲Historicamente, alltodos knownos living[[crocodilo]]s andvivos extincte crocodilesexistentes wereforon indiscriminatelyindiscriminadamente lumpedagrupados into thena [[orderorde (biologybioloxía)|orderorde]] Crocodilia. HoweverPorén, beginningdesde ina thedécada latede 1980s1980, manymoitos scientistscientíficos beganempezaron restrictinga therestrinxir ordera orde Crocodilia toás theespecies vivas livinge speciesos andseus closeparentes extinctextintos relativesmáis suchpróximos ascomo ''[[Mekosuchus]]''. TheOs variousdemias othergrupos groupsque thatantes hadse previouslycoñecían been known ascomo Crocodilia wereforon renamedrenomeados Crocodylomorpha ande theos slightlylixeiramente moremáis restrictedrestrinxidos [[Crocodyliformes]].<ref name=martin&benton2008>{{cite journal | last1 = Martin | first1 = J.E. | last2 = Benton | first2 = M.J. | year = 2008 | title = Crown Clades in Vertebrate Nomenclature: Correcting the Definition of Crocodylia | url = | journal = Systematic Biology | volume = 57 | issue = 1| pages = 173–181 | doi=10.1080/10635150801910469 | pmid=18300130}}</ref> A Crocodylomorpha hasdéuselle beena givencategoría the rank ofde [[superordersuperorde]] innalgúns someestudos 20thdo andséculo 21stXX centurye studiesXXI.<ref>{{Cite journal | last1 = Parrilla-Bel | first1 = J. | last2 = Young | first2 = M. T. | last3 = Moreno-Azanza | first3 = M. | last4 = Canudo | first4 = J. I. | editor1-last = Butler | editor1-first = Richard J | title = The First Metriorhynchid Crocodylomorph from the Middle Jurassic of Spain, with Implications for Evolution of the Subclade Rhacheosaurini | doi = 10.1371/journal.pone.0054275 | journal = PLoS ONE | volume = 8 | pages = e54275 | year = 2013 | pmid = 23372699| pmc = 3553084}}</ref>
The old Crocodilia was subdivided into the suborders:
* [[Eusuchia]]: true crocodilies (which includes crown-group [[Crocodylia]])▼
* [[Mesosuchia]]: 'middle' crocodiles▼
* [[Thalattosuchia]]: sea crocodiles▼
* [[Protosuchia]]: first crocodiles▼
 
O vello [[taxon]] Crocodilia foi subdividido nas subordes:
Mesosuchia is a [[paraphyletic]] group as it does not include eusuchians (which nest within Mesosuchia). [[Mesoeucrocodylia]] was the name given to the clade that contains mesosuchians and eusuchians (Whetstone and Whybrow, 1983).
▲* [[Eusuchia]]: truecrocodilos crocodiliesverdadeiros (whichque includesinclúe crown-groupo [[grupocoroa]] [[Crocodylia]])
▲* [[Mesosuchia]]: crocodilos 'middlemedios' crocodiles
▲* [[Thalattosuchia]]: seacrocodilos crocodilesde mar
▲* [[Protosuchia]]: firstprimeiros crocodilescrocodilos
 
Mesosuchia é un grupo [[parafilético]], xa que non inclúe os eusuquios (que están incrustados dentro de Mesosuchia). [[Mesoeucrocodylia]] foi o nome que se lled eu ao clado que contén os mesosuquios e eusuquios (Whetstone e Whybrow, 1983).
 
=== Filoxenia ===
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Below is a [[cladogram]] modified from Nesbitt (2011) <ref name=NSJ11>{{cite journal|last=Nesbitt|first=S.J.|year=2011 |title=The early evolution of archosaurs: relationships and the origin of major clades|journal=Bulletin of the American Museum of Natural History|volume=352|pages=1–292|url=http://digitallibrary.amnh.org/dspace/bitstream/2246/6112/1/B352.pdf|doi=10.1206/352.1}}</ref> and Bronzati (2012).<ref name=BML12>{{Cite journal | last1 = Bronzati | first1 = M. | last2 = Montefeltro | first2 = F. C. | last3 = Langer | first3 = M. C. | title = A species-level supertree of Crocodyliformes | doi = 10.1080/08912963.2012.662680 | journal = Historical Biology | pages = 1 | year = 2012 | pmid = | pmc = | volume=24}}</ref>
 
Traído desde «https://gl.wikipedia.org/wiki/Crocodilomorfos»