Arthropods from region Morrow County (Ohio, USA) Arachnida Lamarck, 1801 Arachnids | 33 53 53 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 1 1 1 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 5 5 4 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 9 16 4 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 205 817 1100 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 19 22 32 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 6 7 2 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 8 8 3 | Families Genera Species | Taxom
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