Arthropods from region Halfway Lake (Westlock County, Alberta, Canada) Arachnida Lamarck, 1801 Arachnids | 9 11 12 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 4 4 3 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 66 163 184 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 2 2 2 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 2 2 1 | Families Genera Species | Taxom
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