Arthropods from region Northern Ontario (Ontario, Canada) Arachnida Lamarck, 1801 Arachnids | 109 316 488 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 11 24 38 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 4 5 6 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 7 18 21 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 11 28 38 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 458 3995 7628 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 59 92 117 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 12 26 38 | Families Genera Species | Taxom
| Merostomata Woodward, 1866 Horseshoe crabs, Merostomates | 3 4 2 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 29 54 57 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 2 2 1 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 29 41 16 | Families Genera Species | Taxom
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