Palaeos		Decapoda
Arthropoda		Classification

Decapoda: Classification

MALACOSTRACA
|
`--DECAPODA
   |--Dendrobranchiata
   `--+--Caridea
      `--Reptantia
        |--Eryonoidea
        `--Eureptantia
           |--Astacidea
           |--Palinuroidea
           `--+--Anomura
              `--Brachyura

The following very provisional classification is copied from Wikipedia, and does not include many extinct taxa

Superclass Crustacea
   Class Malacostraca Latreille, 1802
      Subclass Eumalacostraca Grobben, 1892
         Superorder Eucarida Calman, 1904
            Order Decapoda Latreille, 1802 (Most extant crustaceans, crabs, lobsters, prawns, etc, Devonian - Rec)
               Suborder Dendrobranchiata Bate, 1888
                           Superfamily Penaeoidea Rafinesque, 1815
                           Superfamily Sergestoidea Dana, 1852
               Suborder Pleocyemata Burkenroad, 1963
                  Infraorder Stenopodidea Bate, 1888
                  Infraorder Caridea Dana, 1852
                           Superfamily Procaridoidea Chace & Manning, 1972
                           Superfamily Galatheacaridoidea Vereshchaka, 1997
                           Superfamily Pasiphaeoidea Dana, 1852
                           Superfamily Oplophoroidea Dana, 1852
                           Superfamily Atyoidea De Haan, 1849
                           Superfamily Bresilioidea Calman, 1896
                           Superfamily Nematocarcinoidea Smith, 1884
                           Superfamily Psalidopodoidea Wood-Mason, 1874
                           Superfamily Stylodactyloidea Bate, 1888
                           Superfamily Campylonotoidea Sollaud, 1913
                           Superfamily Palaemonoidea Rafinesque, 1815
                           Superfamily Alpheoidea Rafinesque, 1815
                           Superfamily Processoidea Ortmann, 1896
                           Superfamily Pandaloidea Haworth, 1825
                           Superfamily Physetocaridoidea Chace, 1940
                           Superfamily Crangonoidea Haworth, 1825
                  Infraorder Polychelida Scholtz & Richter, 1995
                           Superfamily Eryonoidea De Haan, 1841. (monotypal)
                              Family Coleiidae Van Straelen, 1924 †
                              Family Eryonidae De Haan, 1841 †
                              Family Palaeopentachelidae Ahyong, 2009 †
                              Family Polychelidae Wood-Mason, 1875
                              Family Tetrachelidae Beurlen, 1930 †
                  Infraorder Astacidea Latreille, 1802
                           Superfamily Enoplometopoidea de Saint Laurent, 1988
                           Superfamily Nephropoidea Dana, 1852
                           Superfamily Astacoidea Latreille, 1802
                           Superfamily Parastacoidea Huxley, 1879
                  Infraorder Glypheidea Winckler, 1882
                           Superfamily Glypheoidea Winckler, 1882
                              Family † Chimaerastacidae Amati, Feldmann & Zonneveld, 2004
                              Family Glypheidae Winckler, 1882
                              Family † Mecochiridae Van Straelen, 1924
                              Family † Pemphicidae Van Straelen, 1928
                              Family † Platychelidae Glaessner, 1969
                           Superfamily † Erymoidea Van Straelen, 1924
                              Family † Erymidae Van Straelen, 1924
                  Infraorder Axiidea de Saint Laurent, 1979b
                  Infraorder Gebiidea de Saint Laurent, 1979
                  Infraorder Achelata Scholtz & Richter, 1995
                  Infraorder Anomura MacLeay, 1838
                           Superfamily Aegloidea Dana, 1852
                           Superfamily Galatheoidea Samouelle, 1819
                           Superfamily Hippoidea Latreille, 1825a
                           Superfamily Kiwaoidea Macpherson, Jones & Segonzac, 2005
                           Superfamily Lithodoidea Samouelle, 1819
                           Superfamily Lomisoidea Bouvier, 1895
                           Superfamily Paguroidea Latreille, 1802
                  Infraorder Brachyura Linnaeus, 1758 (Crabs; Trias-Rec)
                     Section Dromiacea De Haan, 1833
                           Superfamily Dromioidea De Haan, 1833
                           Superfamily Homolodromioidea Alcock, 1900
                           Superfamily Homoloidea De Haan, 1839
                     Section Raninoida De Haan, 1839
                     Section Cyclodorippoida Ortmann, 1892
                     Section Eubrachyura de Saint Laurent, 1980
                        Subsection Heterotremata Guinot, 1977
                           Superfamily Aethroidea Dana, 1851
                           Superfamily Bellioidea Dana, 1852
                           Superfamily Bythograeoidea Williams, 1980
                           Superfamily Calappoidea De Haan, 1833
                           Superfamily Cancroidea Latreille, 1802
                           Superfamily Carpilioidea Ortmann, 1893
                           Superfamily Cheiragonoidea Ortmann, 1893
                           Superfamily Corystoidea Samouelle, 1819
                           Superfamily Dairoidea Serène, 1965
                           Superfamily Dorippoidea MacLeay, 1838
                           Superfamily Eriphioidea MacLeay, 1838
                           Superfamily Gecarcinucoidea Rathbun, 1904
                           Superfamily Goneplacoidea MacLeay, 1838
                           Superfamily Hexapodoidea Miers, 1886
                           Superfamily Leucosioidea Samouelle, 1819
                           Superfamily Majoidea Samouelle, 1819
                           Superfamily Orithyioidea Dana, 1852c
                           Superfamily Palicoidea Bouvier, 1898
                           Superfamily Parthenopoidea MacLeay,
                           Superfamily Pilumnoidea Samouelle, 1819
                           Superfamily Portunoidea Rafinesque, 1815
                           Superfamily Potamoidea Ortmann, 1896
                           Superfamily Pseudothelphusoidea Ortmann, 1893
                           Superfamily Pseudozioidea Alcock, 1898
                           Superfamily Retroplumoidea Gill, 1894
                           Superfamily Trapezioidea Miers, 1886
                           Superfamily Trichodactyloidea H. Milne-Edwards, 1853
                           Superfamily Xanthoidea MacLeay, 1838
                        Subsection Thoracotremata Guinot, 1977
                           Superfamily Cryptochiroidea Paul'son, 1875
                           Superfamily Grapsoidea MacLeay, 1838
                           Superfamily Ocypodoidea Rafinesque, 1815
                           Superfamily Pinnotheroidea De Haan, 1833