Arthropods from region Silurian (Paleozoic) Arachnida Lamarck, 1801 Arachnids | 20 22 23 | Families Genera Species | Taxom
| Artiopoda ♰ Hou & Bergström, 1997 Artiopods | 0 2 2 | 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 | 9 12 10 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 153 611 864 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 18 25 25 | Families Genera Species | Taxom
| Marrellomorpha ♰ Beurlen, 1930 Marrellomorph Arthropods | 1 1 1 | Families Genera Species | Taxom
| Megacheira ♰ Hou & Bergström, 1997 Great appendage arthropods | 1 1 1 | Families Genera Species | Taxom
| Merostomata Woodward, 1866 Horseshoe crabs, Merostomates | 13 54 166 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 42 178 408 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 1 1 1 | Families Genera Species | Taxom
| Thylacocephala ♰ Pinna & al., 1982 Bivalve arthropods | 0 2 1 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 35 317 1119 | Families Genera Species | Taxom
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