Arthropods from region Atlantic Ocean (World Oceans) Arachnida Lamarck, 1801 Arachnids | 118 353 603 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 10 14 20 | Families Genera Species | Taxom
| Cephalocarida Sanders, 1955 Cephalocarids, Horseshoe shrimps | 1 2 1 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 7 13 26 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 6 8 7 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 5 8 8 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 268 1353 2302 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 359 1638 4948 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 141 391 777 | Families Genera Species | Taxom
| Merostomata Woodward, 1866 Horseshoe crabs, Merostomates | 1 1 1 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 34 207 373 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 12 45 301 | Families Genera Species | Taxom
| Remipedia Yager, 1981 Cave-dwelling crustaceans, Remipedes | 7 11 26 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 7 12 2 | Families Genera Species | Taxom
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