Arthropods from region Oxford (Jones County, Iowa, USA) Arachnida Lamarck, 1801 Arachnids | 5 5 5 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 2 2 2 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 96 343 430 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 4 6 7 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 6 6 1 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 3 3 2 | Families Genera Species | Taxom
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