Arthropods from region Ohio (USA) Arachnida Lamarck, 1801 Arachnids | 202 527 605 | Families Genera Species | Taxom
| Artiopoda ♰ Hou & Bergström, 1997 Artiopods | 1 1 1 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 9 13 16 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 9 24 34 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 24 42 48 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 12 36 30 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 512 5022 11222 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 42 69 145 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 13 21 27 | Families Genera Species | Taxom
| Merostomata Woodward, 1866 Horseshoe crabs, Merostomates | 4 11 12 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 50 108 140 | Families Genera Species | Taxom
| Thylacocephala ♰ Pinna & al., 1982 Bivalve arthropods | 1 1 1 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 33 84 71 | Families Genera Species | Taxom
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