Phylum - Arthropoda

Common name: Insects, Crustaceans, Millipedes, Centipedes, Spiders, Scorpions, Springtails, Harvestmen, Horseshoe Crabs

Name derivation: “jointed leg”

  • Class: Branchiopoda
  • Class: Cephalocarida
  • Class: Chilopoda
  • Class: Collembola
  • Class: Copepoda
  • Class: Diplopoda
  • Class: Diplura
  • Class: Insecta
  • Class: Malacostraca
  • Class: Maxillopoda
  • Class: Merostomata
  • Class: Ostracoda
  • Class: Pauropoda
  • Class: Protura
  • Class: Pycnogonida
  • Class: Remipedia
  • Class: Symphyla
  • Class: Tantulocarida
  • Class: Trilobita EXTINCT

Number of Orders: 157

Number of Families: 4,306

Number of Genus: 117,496

Number of known Species: 1,201,711

Earliest Fossil Record:  Early Cambrian 537 mya

Habitat: Terrestrial, Marine, Freshwater, Parasitic

Size Range: 0.1 mm to 4 m (leg span)

Notes: Based on Catalogue of Life as of July 2024

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