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Llinia 6:
=== Oríxenes ===
Los saurópsidos son una de los dos grandes cañes evolutives de los amniotas (la otra gran caña ye la de los sinápsidos, que conduz hasta los mamíferos). Aniciar a partir de [[Tetrapoda|tetrápodos]] primitivos nel periodu [[Carboníferu]], diversificándose mientres los períodos posteriores.
 
== Filogenia ==
Según ''Tree of Life'', les rellaciones [[Filoxenia|filogenéticas]] de los grupos antes mentaos son les siguientes:
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[[Synapsida]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |'''Sauropsida'''
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[[Anapsida]]
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[[Diapsida]]
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Como pue comprobase, los sinápsidos (qu'inclúin los actuales [[Mammalia|mamíferos]] y una gran cantidá de formes fósiles rellacionaes con ellos conocíos como «reptiles» mamiferoides), nun tán consideraos saurópsidos (reptiles).
 
Tocantes a la [[Filoxenia|filogenia]] interna de los saurópsidos, si solo tiénense en cuenta les formes actuales, queda como sigue:
<span data-source="334" id="cx334" contenteditable="false" tabindex="0"></span>
{| style="border-spacing: 0px; margin: 0px 0px 10px; font-size: 100%; line-height: 100%;" tabindex="0"
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{| style="border-spacing:0;margin:0;"
| style="width:1em;border:0;padding:0 0.2em;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Anapsida]]
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[[Testudines]] (tortugas)
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Diapsida]]
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{| style="border-spacing:0;margin:0;"
| style="width:1em;border:0;padding:0 0.2em;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Lepidosauria]]
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{| style="border-spacing:0;margin:0;"
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''[[Sphenodon]]'' (tuátaras)
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[[Squamata]] (lagartos, serpientes)
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Archosauria]]
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{| style="border-spacing:0;margin:0;"
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[[Crocodilia]] (cocodrilos)
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[[Aves]]
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Cabo destacar que'l grupu actual más cercanu [[Filoxenia|filogenéticamente]] a les aves son los [[Crocodilia|cocodrilos]].
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{| style="border-spacing:0;margin:0;"
| style="width:1em;border:0;padding:0 0.2em;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Anapsida]]
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{| style="border-spacing:0;margin:0;"
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[[Mesosauridae]][[Extinción|†]][[Archivo:Mesosaurus BW.jpg|100px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Parareptilia]]
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{| style="border-spacing:0;margin:0;"
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[[Millerettidae]]†[[Archivo:Milleretta BW.jpg|100px]]
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[[Bolosauridae]]†[[Archivo:Eudibamus BW.jpg|100px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Procolophonomorpha]]
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{| style="border-spacing:0;margin:0;"
| style="width:1em;border:0;padding:0 0.2em;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Procolophonia]]†
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[[Procolophonidae]]†[[Archivo:Procolophon BW.jpg|100px]]
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[[Pareisauridae]]†[[Archivo:Bradysaurus BW.jpg|100px]]
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[[Testudines]] (tortugas)[[Archivo:Florida Box Turtle Digon3 re-edited.jpg|80px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Eureptilia]]
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[[Captorhinidae]]†[[Archivo:Captorhinus BW.jpg|100px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Romeriida]]
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[[Protorothyrididae]]†[[Archivo:Hylonomus BW.jpg|100px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Diapsida]]
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[[Araeoscelidia]]†[[Archivo:Petrolacosaurus BW.jpg|100px]]
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[[Avicephala]]†[[Archivo:Longisquama BW.jpg|100px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Neodiapsida]]
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{| style="border-spacing:0;margin:0;"
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[[Younginiformes]]†[[Archivo:Hovasaurus BW.jpg|100px]]
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{| style="border-spacing:0;margin:0;"
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[[Sauropterygia]]†[[Archivo:Cryptoclidus1DB.jpg|70px]]
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[[Ichthyopterygia]]†[[Archivo:Ophthalmosaurus BW.jpg|100px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Lepidosauriformes]]
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{| style="border-spacing:0;margin:0;"
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[[Sphenodontia]][[Archivo:Sphenodon punctatus in Waikanae, New Zealand.jpg|100px]]
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[[Squamata]][[Archivo:Plumedbasiliskcele4 edit.jpg|100px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Archosauromorpha]]
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{| style="border-spacing:0;margin:0;"
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[[Choristodera]]†[[Archivo:Champsosaurus BW.jpg|100px]]
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[[Trilophosauridae]]†[[Archivo:Trilophosaurus BW.jpg|100px]]
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[[Rhynchosauridae]]†[[Archivo:Paradapedon 1DB.jpg|60px]]
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[[Prolacertiformes]]†[[Archivo:Sharovipteryx BW.jpg|100px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Archosauriformes]]
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{| style="border-spacing:0;margin:0;"
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[[Proterosuchidae]]†[[Archivo:Chasmatosaurus BW.jpg|100px]]
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[[Erythrosuchidae]]†[[Archivo:Chalishevia cothurnata.jpg|100px]]
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[[Euparkeriidae]]†[[Archivo:Euparkeria BW.jpg|100px]]
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{| style="border-spacing:0;margin:0;"
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[[Proterochampsidae]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Archosauria]]
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{| style="border-spacing:0;margin:0;"
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[[Crurotarsi]][[Archivo:NileCrocodile.jpg|100px]]
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| style="border:0;padding:0 0.2em;border-left:1px solid;border-bottom:1px solid;vertical-align:bottom;text-align:center;" |[[Ornithodira]]
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{| style="border-spacing:0;margin:0;"
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[[Pterosauria|Pterosauromorpha]]†[[Archivo:SordesDB.jpg|100px]]
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[[Dinosauromorpha]][[Archivo:Petroica boodang Meehan Range 1 crop.jpg|80px]]
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Tocantes a intelixencia, los saurópsidos tienen bien desenvuelta. Sábese que los dragones de Komodo son capaces de xugar, munchos varanos pueden cooperar ente sí, y los cocodrilos crean complexos sistemes sociales. Les [[aves]] tienen la intelixencia bien desenvuelta. Los loros y cuervos son capaces de desenvolver problemes complexos. Munches aves utilicen ferramientes y pueden aprender. Son capaces de cuntar, aprender conceutos y crear complexes sociedaes. El so llinguaxe ye bien complexu, y dalgunes son capaces d'asonsañar la voz humana, acomuñando pallabres a oxetos y conceutos.
 
Munchos saurópsidos marinos tienen glándules que los ayudarse a estrayer el sal marino acumulada nel cuerpu, como ye'l casu de les glándules lacrimales de les tortúes marines. Les aves son capaces de sudar pa controlar la temperatura corporal, anque en menor midida que los mamíferos, por cuenta de la complexidá del so sistema respiratoriu.
 
== Bioloxía y comportamientu ==
Sacáu de «https://ast.wikipedia.org/wiki/Sauropsida»