Arthropods from region Northwest Territories (North Canada, Canada) Arachnida Lamarck, 1801 Arachnids | 85 185 285 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 7 14 21 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 2 2 2 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 4 6 5 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 274 1634 3048 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 54 89 121 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 23 30 35 | Families Genera Species | Taxom
| Merostomata Woodward, 1866 Horseshoe crabs, Merostomates | 4 4 0 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 36 91 117 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 4 5 15 | Families Genera Species | Taxom
| Thylacocephala ♰ Pinna & al., 1982 Bivalve arthropods | 0 1 0 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 65 191 249 | Families Genera Species | Taxom
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