Between brackets is the number of accepted extant species

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- Decapoda (17 683)
- Suborder Decapoda incertae sedis †
- Suborder Dendrobranchiata (533)
- Superfamily Penaeoidea Rafinesque, 1815 (427)
- Family Aciculopodidae Feldmann & Schweitzer, 2010 †
- Family Aegeridae Burkenroad, 1963 †
- Family Aristeidae Wood-Mason in Wood-Mason & Alcock, 1891 (26)
- Family Benthesicymidae Wood-Mason in Wood-Mason & Alcock, 1891 (39)
- Family Carpopenaeidae Garassino, 1994 †
- Family Penaeidae Rafinesque, 1815 (229)
- Family Penaeoidea incertae sedis †
- Family Sicyoniidae Ortmann, 1898 (52)
- Family Solenoceridae Wood-Mason in Wood-Mason & Alcock, 1891 (81)
- Genus Archeosolenocera Carriol & Riou, 1991 †
- Genus Crassipenaeus Liu & Zhong, 1983 accepted as Cryptopenaeus De Freitas, 1979
- Genus Cryptopenaeus De Freitas, 1979 (5)
- Genus Faxonia Bouvier, 1905 (1)
- Genus Gordonella Tirmizi, 1960 (3)
- Species Gordonella kensleyi Crosnier, 1989
- Species Gordonella paravillosa Crosnier, 1989
- Species Gordonella polyarthra Tirmizi, 1960 accepted as Gordonella villosa (Alcock & Anderson, 1894)
- Species Gordonella villosa (Alcock & Anderson, 1894)
- Genus Hadropenaeus Pérez Farfante, 1977 (4)
- Genus Haliporoides Stebbing, 1914 (4)
- Genus Haliporus Spence Bate, 1881 (3)
- Genus Hymenopenaeus Smith, 1882 (17)
- Genus Maximiliaeus Chan, 2012 (1)
- Genus Mesopenaeus Pérez Farfante, 1977 (3)
- Genus Opisthocaris Ortmann, 1893 accepted as Solenocera Lucas, 1849
- Genus Parahaliporus Kubo, 1949 accepted as Haliporoides Stebbing, 1914
- Genus Parartemesia Bouvier, 1905 accepted as Pleoticus Spence Bate, 1888
- Genus Parasolenocera Wood-Mason in Wood-Mason & Alcock, 1891 accepted as Solenocera Lucas, 1849
- Genus Philonicus Spence Bate, 1888 accepted as Pleoticus Spence Bate, 1888
- Genus Platysacus Spence Bate, 1888 accepted as Solenocera Lucas, 1849
- Genus Pleoticus Spence Bate, 1888 (1)
- Genus Priorhyncha Alencar, Pinheiro, Saraiva, de Oliveira & Santana, 2018 †
- Genus Solenocera Lucas, 1849 (39)
- Genus Transolenocera Burkenroad, 1934 accepted as Solenocera Lucas, 1849
- Superfamily Sergestoidea Dana, 1852 (106)
- Suborder Euzygida accepted as Stenopodidea
- Suborder Heterochelida
- Suborder Macrura
- Suborder Macrura reptantia
- Suborder Natantia
- Suborder Pleocyemata (17 150)
- Suborder Reptantia
- Suborder Trichelida