Arthropods from region Argentina (Southern South America) Arachnida Lamarck, 1801 Arachnids | 247 1201 3186 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 17 34 73 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 11 40 84 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 25 56 76 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 18 47 58 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 686 10351 27232 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 274 788 1377 | Families Genera Species | Taxom
| Marrellomorpha ♰ Beurlen, 1930 Marrellomorph Arthropods | 1 1 1 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 92 247 383 | Families Genera Species | Taxom
| Merostomata Woodward, 1866 Horseshoe crabs, Merostomates | 3 3 3 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 48 170 161 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 11 17 68 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 78 290 266 | Families Genera Species | Taxom
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