Le texto fonte de Arachnido

{{Taxobox
| color = pink
| name = Arachnidos
| image = Haeckel Arachnida.jpg
| image_width = 300px
| image_caption = "Arachnida" ab le ''[[Kunstformen der Natur]]'' de [[Ernst Haeckel]], 1904
| image2 = Victorian funnelweb.jpg
| image2_width = 300px
| image2_caption = Aranea (Hadronyche modesta)
| fossil_range = Silurian al presente
| taxon = Arachnida
| domain=[[Eucaryote|Eukaryota]]
| regnum = [[Animal]]ia
| phylum = [[Arthropodo| Arthropoda]]
| subphylum = [[Chelicerata]]
| authority = [[Georges Cuvier|Cuvier]], 1812
| subdivision_ranks = [[Ordine (rango taxonomic)|Ordine]]s
| subdivision = <div>
: [[Acarina]]
: [[Amblypygi]]
: [[Aranea|Araneae]]
: [[Haptopoda|†Haptopoda]]
: [[Opiliones]]
: [[Palpigradi]]
: [[Phalangiotarbida|†Phalangiotarbida]]
: [[Pseudoscorpion|Pseudoscorpiones]]
: [[Ricinulei]]
: [[Schizomida]]
: [[Scorpiones]]
: [[Solifugae]]
: [[Thelyphonida]]
: [[Trigonotarbida|†Trigonotarbida]]</div> 
}}

Le '''Arachnidos''' es un [[classe (biologia)|classe]] (nomine scientific '''''Arachnida''''') de [[animal]]es [[invertebrato|invertebrate]] con gambas articulate ([[arthropodos]]). Omne arachnidos ha octo gambas, ben que le par anterior de gambas in alicun species se ha convertite in un function sensorial, e in altere species, differente [[appendice]]s pote crescer bastante grande de haber le apparentia de pares supernumerari de gambas. Le termino es derivate ab le parola [[Lingua grec|grec]] &alpha;&rho;&alpha;&chi;&nu;&eta; (''aráchne''), que significa "aranea".<ref>[[Oxford English Dictionary]], Arachnid</ref>

Quasi tote le arachnidos [[Taxon existante|ancora existente]] es terrestre. Totevia, alicunes habita ambientes de aqua dulce e, excepte le [[zona pelagic]], [[Ambiente marin|ambientes marin]] anque. Illos comprende plus de 100.000 [[specie]]s nominate, includente [[aranea]]s, [[scorpion]]es, [[opiliones]], [[ricino]]s, [[acaro]]s, e [[solifugo]]s.<ref>{{cite book |editor=Joel Cracraft & Michael Donoghue |title=Assembling the Tree of Life|publisher=[[Oxford University Press]] |year=2004|page=297}}</ref>

== Classification ==
=== Supertaxones ===
* [[phylo (rango taxonomic)|phylo]] [[Arthropoda]]
* [[subphylo (rango taxonomic)|subphylo]] [[Chelicerata]]

== Subtaxones ==
Ordines:
* [[Acarina]]
* [[Amblypygi]]
* [[Aranea|Araneae]]
* [[Opiliones]]
* [[Palpigradi]]
* [[Pseudoscorpion|Pseudoscorpiones]]
* [[Ricinulei]]
* [[Schizomida]]
* [[Scorpion|Scorpiones]]
* [[Solifugo|Solifugae]]
* [[Thelyphonida]]

== Vide etiam ==
* [[Arachnologia]]
* [[Arachnophobia]]

== Referentias ==
{{commonscat|Arachnida}}
<references />

{{traduction|en|Arachnid|556228873}}

[[Categoria:Arachnida| ]]

{{Pecietta|biologia}}