- Kingdom Animalia -- Animal, animals, animaux
- Phylum Arthropoda -- arthropodes, arthropods, Artrópode
- Subphylum Crustacea Brünnich, 1772 -- crustaceans, crustáceo, crustacés
- Class Malacostraca Latreille, 1802
- Subclass Eumalacostraca Grobben, 1892
- Superorder Eucarida Calman, 1904 -- camarão, caranguejo, ermitão, lagosta, siri
- Order Decapoda Latreille, 1802 -- crabes, crabs, crayfishes, crevettes, écrevisses, homards, lobsters, prawns, shrimp
- Suborder Pleocyemata Burkenroad, 1963
Infraorder Caridea Dana, 1852[]
- Superfamily Alpheoidea Rafinesque, 1815
- Superfamily Atyoidea de Haan, 1849
- Superfamily Bresilioidea Calman, 1896
- Superfamily Campylonotoidea Sollaud, 1913
- Superfamily Crangonoidea Haworth, 1825
- Superfamily Galatheacaridoidea Vereshchaka, 1997
- Superfamily Nematocarcinoidea Smith, 1884
- Superfamily Oplophoroidea Dana, 1852
- Superfamily Palaemonoidea Rafinesque, 1815
- Superfamily Pandaloidea Haworth, 1825
- Superfamily Pasiphaeoidea Dana, 1852
- Superfamily Physetocaridoidea Chace, 1940
- Superfamily Procaridoidea Chace & Manning, 1972
- Superfamily Processoidea Ortmann, 1890
- Superfamily Psalidopodoidea Wood Mason & Alcock, 1892
- Superfamily Stylodactyloidea Bate, 1888