List of arthropod orders

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

Wolf spider carrying its young in its egg sac.
Marrella, one of the puzzling arthropods from the Burgess Shale
A shed carapace of a lady crab, part of the hard exoskeleton

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 Monocondylia

Subclass Dicondylia

Class Entognatha
Proturan specimen (Acerentomon sp.)

Subphylum Chelicerata

Class Xiphosura

Class Eurypterida

Class Arachnida (Arachnids)
Araneus diadematus spider

Class Pycnogonida
Pycnogonida

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)

Class Diplopoda (Millipedes)
See also: List of millipede families

Subclass Penicillata

Subclass Chilognatha

Class Pauropoda
A pauropod

Class Symphyla
  • Order Scolopendrellida (garden centipedes)

Subphylum Crustacea (Crustaceans)
  • Order †Agnostina
  • Order †Henningsmoenicarida
  • Order †Cambropachycopida
  • Order †Cambrocarida
  • Order †Martinssoniida
  • Order †Phosphatocopida
  • Order †Bostrichopodida

Class Thylacocephala

Class Remipedia

Class Branchiopoda
Branchiopods

Class Cephalocarida

Subclass Thecostraca

Subclass Copepoda (Copepods)
Cyclops (Copepoda: Cyclopoida)

Class Branchiura

Class Pentastomida (Tongue worms)
Adult female Linguatula serrata
  • Order Cephalobaenida
  • Order Porocephalida
  • Order Raillietiellida
  • Order Reighardiida

Class Mystacocarida

Class Ostracoda (Ostracods, or seed shrimp)
Ostracod
  • Order †Eridostracoda

Subclass †Leperditicopa
  • Order †Leperditicopida

Subclass †Leiocopa
  • Order †Leiocopida

Subclass †Palaeocopa

Subclass Myodocopa

Subclass Podocopa

Class Malacostraca (Malcostracans, such as crabs and lobsters)
Syncarid Atlantic blue crab Callinectes sapidus
Hoplocarid
Nebalia bipes Phyllocarid
See also: List of prehistoric malacostracans

Subclass Eumalacostraca

Subclass Hoplocarida

Subclass Phyllocarida
  • Order ?†Discinocarida
  • Order †Archaeostraca
  • Order †Hoplostraca
  • Order Leptostraca

Subphylum †Artiopoda

no class

Class †Protosutura
  • Order †Acanthomeridiida

Class †Aglaspida

Class †Trilobita
See also: List of trilobite genera
Paradoxides

Subclass †Petalopleura
  • Order †Sinoburiida
  • Order †Xandarellida

Subclass †Nectopleura

Subclass †Conciliterga

Subclass †Trilobita

Other classes

no class
  • Order †Isoxyida
  • Order †Odaraiida
  • Order †Pectocaridida
  • Order †Mollisoniida
  • Order †Bradoriida
  • Order †Burgessiida

Class† Paracrustacea

Class †Yunnanata

Class †Megacheira
Reconstructed Leanchoilia
  • Order †Fortiforcipida
  • Order †Leanchoiliida
  • Order †Yohoiida

Class Sanctacaridea
  • Order †Habeliida
  • Order †Sanctacarida

Class †Marrellomorpha
  • Order †Acercostraca
  • Order †Marrellida
  • Order †Mimetasterida

Class †Dinocaridida

Class †Euthycarcinoidea

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.
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