List of arthropod orders

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Wolf spider carrying its young in its egg sac.
Marrella, one of the puzzling arthropods from the Burgess Shale
A convex oval-shaped piece of shell, covered with fine orange-pink markings: the front edge is lined with 13 coarse serrations, while the rear edge is smooth.
A shed carapace of a lady crab, part of the hard exoskeleton

Arthropods are invertebrate animals having an exoskeleton, a segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and cuticle made of chitin, often mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species.

Arthropods are invertebrate animals with a chitinous exoskeleton, segmented bodies, and jointed legs. The phylum Arthropoda contains numerous taxonomic orders in over 20 classes.

Subphylum Hexapoda[]

Class Insecta (Insects)[]

Head of a wasp with three ocelli (centre), and compound eyes at the left and right
A pair of Simosyrphus grandicornis hoverflies mating in flight.
Aedes aegypti, a parasite, is the vector of dengue fever and yellow fever

Subclass []

Subclass Dicondylia[]

  • Order †
  • Infraclass Thysanura
  • Infraclass Pterygota
    • Order †
    • Order †
    • Order †
    • Clade Panephemeroptera
      • Order †
      • Order †
      • Order †
      • Order †Coxoplectoptera
      • Order Ephemeroptera – 3,000 (Mayflies)
    • Clade
      • Order †
      • Order †
      • Order †
      • Order †Geroptera
      • Order †
      • Order †Meganisoptera
      • Order †Campylopterodea
      • Order †Protanisoptera
      • Order †Triadophlebioptera
      • Order †Protozygoptera
      • Order Odonata – 5,900 (Dragonflies and damselflies)
    • Clade Palaeodictyopteroidea
    • Clade Polyneoptera
      • Order †
      • Order †Protorthoptera (Paraphyletic assemblage of basal and stem polyneopterans)
      • Order †
      • Order Zoraptera – 28 (Angel insects)
      • Order †
      • Order †Protelytroptera
      • Order Dermaptera – 1,816 (Earwigs)
      • Order Plecoptera – 2,274 (Stoneflies)
      • Order †
      • Order †Alienoptera
      • Order Mantodea – 2,200 (Mantises)
      • Order Blattodea – 3,684–4,000 (Cockroaches and termites)
      • Order Notoptera – 30 (Includes icebugs)
      • Order Phasmatodea – 2,500–3,300 (Stick insects or stick-bugs)
      • Order Embioptera – 200–300 (Webspinners)
      • Order †
      • Order †
      • Order †Titanoptera
      • Order †Caloneurodea
      • Order Orthoptera – 24,380 (Grasshoppers, locusts, crickets, etc.)
    • Clade
    • Clade Holometabola
      • Order Hymenoptera – 115,000 (Sawflies, wasps, bees, and ants)
      • Order Strepsiptera – 596 (Twisted-wing parasites)
      • Order Coleoptera – 360,000–400,000 (Beetles)
      • Order †Glosselytrodea
      • Order Raphidioptera – 210 (Snakeflies)
      • Order Megaloptera – 250–300 (Alderflies, dobsonflies, and fishflies)
      • Order Neuroptera – 5,000 (Net-winged insects)
      • Order †
      • Order †Tarachoptera
      • Order †
      • Order Lepidoptera – 174,250 (Butterflies and moths)
      • Order Trichoptera – 12,627 (Caddisfly)
      • Order †
      • Order †Protodiptera (Permotipula and Permila)
      • Order Diptera – 152,956 (Flies)
      • Order †
      • Order
      • Order Mecoptera – 481 (Scorpionflies)
      • Order
      • Order Siphonaptera – 2,525 (Fleas)

Class Entognatha[]

Proturan specimen (Acerentomon sp.)
  • Order Collembola (Springtails)
  • Order Diplura (Diplurans)
  • Order Protura (Coneheads)

Subphylum Chelicerata[]

Class Xiphosura[]

  • Order Xiphosurida

Class Eurypterida[]

Class Arachnida (Arachnids)[]

Class Pycnogonida[]

Pycnogonida
  • Order Pantopoda (Sea spiders)

Subphylum Myriapoda (Centipedes and millipedes)[]

A representative millipede and centipede (not necessarily to scale)
Ammodesmus nimba from Guinea, West Africa, curled in a defensive coil

Class Chilopoda (Centipedes)[]

  • Order Scutigeromorpha
  • Order Lithobiomorpha (stone centipedes)
  • Order †
  • Order Craterostigmomorpha
  • Order Scolopendromorpha (tropical centipedes)
  • Order Geophilomorpha (soil centipedes)

Class Diplopoda (Millipedes)[]

Subclass Penicillata[]

Subclass Chilognatha[]

Class Pauropoda[]

A pauropod

Class Symphyla[]

Subphylum Crustacea (Crustaceans)[]

  • Order †
  • Order †
  • Order †
  • Order †
  • Order †
  • Order †Phosphatocopida
  • Order †

Class Thylacocephala[]

  • Order †
  • Order †Concavicarida
  • Order †Conchyliocarida

Class Remipedia[]

  • Order †
  • Order Nectiopoda

Class Branchiopoda[]

Branchiopods
  • Subclass Sarsostraca
    • Order Anostraca (Fairy shrimp)
    • Order †Lipostraca
  • Subclass Phyllopoda

Class Cephalocarida[]

  • Order Brachypoda (Horseshoe shrimp)

Class Thecostraca[]

[3]

Subclass Ascothoracida[]

Subclass Cirripedia (Barnacles)[]

Subclass Facetotecta[]

Class Hexanauplia[]

Subclass Copepoda (Copepods)[]

Cyclops (Copepoda: Cyclopoida)

Class Branchiura[]

  • Order Arguloida (Carp lice, or fish lice)
  • Order †Cyclida (Cycloids)

Class Pentastomida (Tongue worms)[]

Adult female Linguatula serrata

Class Mystacocarida[]

[4]

  • Order Mystacocaridida

Class Ostracoda (Ostracods, or seed shrimp)[]

Ostracod
  • Order †

Subclass †[]

  • Order †

Subclass †[]

  • Order †

Subclass †[]

Subclass Myodocopa[]

Subclass Podocopa[]

Class Malacostraca (Malcostracans, such as crabs and lobsters)[]

Syncarid Atlantic blue crab Callinectes sapidus
Hoplocarid
Nebalia bipes Phyllocarid

Subclass Eumalacostraca[]

Subclass Hoplocarida[]

Subclass Phyllocarida[]

Subphylum †Artiopoda[]

no class[]

Class †[]

  • Order †

Class †Aglaspida[]

Class †Trilobita[]

Paradoxides

Order []

Subclass †Petalopleura[]

  • Order †
  • Order †

Subclass †[]

  • Order †Nectaspidida

Subclass †[]

  • Order †Helmetiida

Subclass †Trilobita[]

Other classes[]

no class[]

Class† []

  • Order †Canadaspidida

Class †[]

Class †Megacheira[]

Reconstructed Leanchoilia
  • Order †
  • Order †Leanchoiliida
  • Order †

Class †[]

  • Order †
  • Order †

Class †Marrellomorpha[]

Class †Dinocaridida[]

Class †Euthycarcinoidea[]

  • Order †Euthycarcinida

References[]

  1. ^ Shear, William A.; Edgecombe, Gregory D. (2010). "The geological record and phylogeny of the Myriapoda". Arthropod Structure & Development. 39 (2–3): 174–190. doi:10.1016/j.asd.2009.11.002. PMID 19944188.
  2. ^ Hoffman, R.L. (1963). "New genera and species of Upper Paleozoic Diplopoda". Journal of Paleontology. 37 (1): 167–174. JSTOR 1301419.
  3. ^ "World Register of Marine Species". Retrieved 2021-08-24.
  4. ^ WoRMS (2021). Mystacocarida. Accessed at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1079 on 2021-08-23
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