 Natura - nature | | Mundus Plinius - physical world | | Naturalia | | Biota | | Domain Eukaryota - eukaryotes | | Kingdom Animalia C. Linnaeus, 1758 - animals | | Subkingdom Bilateria (Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians | | Branch Protostomia Grobben, 1908 - protostomes | | Infrakingdom Ecdysozoa Aguinaldo et al., 1997 ex Cavalier-Smith, 1998 - ecdysozoans | | Superphylum Panarthropoda | | Phylum Arthropoda Latreille, 1829 - arthropods | | Subphylum Mandibulata Snodgrass, 1938 | | Infraphylum Crustaceomorpha (Chernyshev, 1960) | | Superclass Crustacea Pennant, 1777 - crustaceans | | Epiclass Eucrustacea | | Class Maxillopoda Dahl, 1956 |  Subclass Pentastomida Diesing, 1836 - tongue worms |  Order Cephalobaenida Heymons, 1935 | | Order Porocephalida Heymons, 1935 |
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