Home›Arachnids›Taxonomy›ArachnidaTaxaArachnidaClassReference and ClassificationThoroughly VerifiedArthropods with a two-part body (a fused head-thorax and an abdomen), four pairs of walking legs, and no antennae or wings. Arachnida includes spiders, scorpions, ticks and mites, nearly all of them predatory or parasitic.FactsArachnidaConnectionsSourcesComments (0)Reader Challenges (0)FactsTaxonomic RankWell-attestedClass 2Scientific NameWell-attestedArachnida 2Member Count BandWell-attestedOver 1000 Species 3Era First AppearedWell-attestedSilurian 4DisputedMember Species/Taxa CountScholarly debate110,000 2Approximate described-species (or, for a genus, described-taxon) count; continually revised as species are newly described, reclassified or synonymized.ClassificationLiving or ExtinctWell-attestedYes 1ArachnidaFilter Results8 entriesCommon GroupAllHarvestmen (Opiliones) (1)Pseudoscorpions (1)Scorpions (1)Ticks And Mites (Acari) (3)Whip Spiders And Whip Scorpions (2)Everyday GroupAllHarvestmen (Opiliones) (1)Pseudoscorpions (1)Scorpions (1)Ticks And Mites (Acari) (3)Whip Spiders And Whip Scorpions (2)HabitatAllDesert (1)Grassland (1)Intertidal Zone (1)Tropical Rainforest (1)Where It LivesAllAfrica (2)Asia (1)Australia (1)Denmark (1)North America (1)Norway (2)South America (1)South Asia (1)Southern Europe (1)Sweden (1)The Middle East (1)United States (1)DietAllCarnivore (3)Detritivore or Scavenger (2)Insectivore (1)Omnivore (1)Parasitic (1)System (Realm)AllMarine (1)Terrestrial (5)Living or ExtinctAllYes (8)Relationship to PeopleAllAgricultural or Structural Pest (1)Disease Vector (1)Invasive or Introduced Species (1)Kept as Pets (1)CITES AppendixAllNot Listed (5)Show ResultsBrowseCompareSelect all 8Camel SpiderArachnidaDust MiteArachnidaEyelash MiteArachnidaHarvestmanArachnidaMiteArachnidaPseudoscorpionArachnidaShort-tailed WhipscorpionArachnidaWhip SpiderArachnidaConnectionsChild Taxon OfArthropoda, Taxa Well-attested Source Catalogue of LifeParent Taxon OfCamel Spider, Species Well-attested Source Wikidata: SolifugaeDust Mite, Species Well-attested Source GBIF Backbone Taxonomy: Dermatophagoides pteronyssinusEyelash Mite, Species Well-attested Source GBIF Backbone Taxonomy: Demodex folliculorumHarvestman, Species Well-attested Source Wikidata: OpilionesIxodidae, Taxa Well-attested Source GBIF Backbone Taxonomy: IxodidaeMite, Species Well-attested Source Mite - WikipediaPseudoscorpion, Species Well-attested Source Wikidata: PseudoscorpionesShort-tailed Whipscorpion, Species Well-attested Source Wikidata: UropygiWhip Spider, Species Well-attested Source Wikidata: AmblypygiSources1. Wikidata (taxon extant/extinct status)tier 2Wikimedia Foundation / Wikidata contributorsQ1358, descriptionView the Source2. Catalogue of LifeSpecies 2000 & ITIS Catalogue of LifeTaxonomic Rank: ClassScientific Name: ArachnidaMember Species/Taxa Count: 110,000View the Source3. Catalogue of Life (ChecklistBank): Taxon metrics for ArachnidaCatalogue of Life (ChecklistBank)Taxon metrics, speciesExtantCountQuote, Taxon metrics, speciesExtantCount"speciesExtantCount": 98135View the Source4. Paleobiology Database: Taxon record for ArachnidaPaleobiology DatabaseTaxon record, first appearance (firstapp_max_ma, early_interval)Quote, Taxon record, first appearance (firstapp_max_ma, early_interval)"taxon_name": "Arachnida" ... "firstapp_max_ma": 438.6 ... "early_interval": "Telychian"View the SourceWikidata: ArachnidaWikidata Q1358, class allow-list match (w-wdresolver-0926)View the SourceWikidata: SolifugaeParent Taxon Of: Camel Spider, Wikidata P171 (parent taxon) claim, rank=normal, target=Q1358 (Arachnida)View the SourceWikidata: OpilionesParent Taxon Of: Harvestman, Wikidata P171 (parent taxon) claim, rank=normal, target=Q1358 (Arachnida)View the SourceWikidata: AmblypygiParent Taxon Of: Whip Spider, Wikidata P171 (parent taxon) claim, rank=normal, target=Q1358 (Arachnida)View the SourceWikidata: UropygiParent Taxon Of: Short-tailed Whipscorpion, Wikidata P171 (parent taxon) claim, rank=normal, target=Q1358 (Arachnida)View the SourceWikidata: PseudoscorpionesParent Taxon Of: Pseudoscorpion, Wikidata P171 (parent taxon) claim, rank=normal, target=Q1358 (Arachnida)View the SourceMite - WikipediaParent Taxon Of: Mite, TaxoboxQuote, Parent Taxon Of: Mite, TaxoboxWikipedia taxobox field: parent = ArachnidaView the SourceWikipedia: Arachnidtier 2WikipediaIn Group: Arthropod Classes, LeadQuote, In Group: Arthropod Classes, LeadArachnids are arthropods in the class Arachnida () of the subphylum Chelicerata.View the SourceGBIF Backbone Taxonomy: Dermatophagoides pteronyssinusGBIF Backbone TaxonomyParent Taxon Of: Dust Mite, Taxon recordQuote, Parent Taxon Of: Dust Mite, Taxon record"class": "Arachnida"View the SourceGBIF Backbone Taxonomy: Demodex folliculorumGBIF Backbone TaxonomyParent Taxon Of: Eyelash Mite, Taxon recordQuote, Parent Taxon Of: Eyelash Mite, Taxon record"class": "Arachnida"View the SourceGBIF Backbone Taxonomy: IxodidaeGBIF Backbone TaxonomyParent Taxon Of: Ixodidae, Taxon recordQuote, Parent Taxon Of: Ixodidae, Taxon record"class": "Arachnida"View the SourceComments (0)No comments yet. 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