Arthropods from region Pocahontas County (Iowa, USA) Arachnida Lamarck, 1801 Arachnids | 18 34 41 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 4 4 3 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 8 21 15 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 166 565 735 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 18 21 26 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 3 4 4 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 1 1 0 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 3 3 1 | Families Genera Species | Taxom
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