Arthropods from region Colorado (West USA, USA) Arachnida Lamarck, 1801 Arachnids | 149 463 1108 | Families Genera Species | Taxom
| Artiopoda ♰ Hou & Bergström, 1997 Artiopods | 1 1 0 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 16 20 23 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 6 15 18 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 18 23 29 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 12 52 75 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 595 8339 20024 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 63 86 102 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 13 29 36 | Families Genera Species | Taxom
| Merostomata Woodward, 1866 Horseshoe crabs, Merostomates | 1 1 0 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 21 31 30 | Families Genera Species | Taxom
| Symphyla Ryder, 1880 Dwarf Centipedes, Pseudocentipedes, Symphylans, Symphylids | 1 1 1 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 15 21 14 | Families Genera Species | Taxom
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