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)
- Genus Albertoppelia Schweigert & Garassino, 2004 †
- Genus Alcockpenaeopsis Sakai & Shinomiya, 2011 (1)
- Genus Ambilobeia Garassino & Pasini, 2002 †
- Genus Antrimpos Münster, 1839 †
- Genus Arafurapenaeopsis Sakai & Shinomiya, 2011 (1)
- Genus Araripenaeus Pinheiro, Saraiva & Santana, 2014 †
- Genus Archipenaeopsis Bouvier, 1905 accepted as Metapenaeopsis Bouvier, 1905
- Genus Artemesia Spence Bate, 1888 (1)
- Genus Atypopenaeus Alcock, 1905 (5)
- Genus Batepenaeopsis Sakai & Shinomiya, 2011 (4)
- Genus Bylgia Münster, 1839 †
- Genus Bylginella Schweigert, Garassino & Pasini, 2016 †
- Genus Ceratopenaeus Kishinouye, 1929 accepted as Metapenaeopsis Bouvier, 1905
- Genus Cretapenaeus Garassino & Pasini, 2006 †
- Genus Drobna Münster, 1839 †
- Genus Dusa Münster, 1839 †
- Genus Erythropenaeus Kishinouye, 1929 accepted as Metapenaeopsis Bouvier, 1905
- Genus Eystaettia Schweigert, Garassino & Pasini, 2016 †
- Genus Farfantepenaeus Burukovsky, 1997 accepted as Penaeus Fabricius, 1798
- Genus Fenneropenaeus Pérez Farfante, 1969 accepted as Penaeus Fabricius, 1798
- Genus Franconipenaeus Schweigert, Garassino & Pasini, 2016 †
- Genus Funchalia Johnson, 1868 (5)
- Genus Ganjampenaeopsis Sakai & Shinomiya, 2011 (1)
- Genus Grimaldiella Bouvier, 1905 accepted as Funchalia Johnson, 1868
- Genus Hemipenaeopsis Bouvier, 1905 accepted as Funchalia Johnson, 1868
- Genus Heteropenaeus De Man, 1896 (1)
- Genus Holthuispenaeopsis Sakai & Shinomiya, 2011 (1)
- Genus Ifasya Garassino & Teruzzi, 1995 †
- Genus Joinvilleicaris Charbonnier, Audo, Garassino & Hyžný, 2017 †
- Genus Kishinouyepenaeopsis Sakai & Shinomiya, 2011 accepted as Parapenaeopsis Alcock, 1901
- Genus Koelga Münster, 1839 †
- Genus Kölga Münster, 1839 † accepted as Koelga Münster, 1839 †
- Genus Ladinicaris Pasini, Garassino, Stockar & Magnani, 2022 †
- Genus Leptopenaeus Kishinouye, 1929 accepted as Metapenaeopsis Bouvier, 1905
- Genus Libanocaris Garassino, 1994 †
- Genus Litopenaeus Pérez Farfante, 1969 accepted as Penaeus Fabricius, 1798
- Genus Longichela Garassino & Teruzzi, 1993 †
- Genus Longitergite Garassino & Teruzzi, 1996 † accepted as Crangon Fabricius, 1798
- Genus Loxopis Dana, 1852
- Genus Machaerophorus von der Marck, 1863 † accepted as Penaeus Fabricius, 1798
- Genus Macropenaeus Garassino, 1994 †
- Genus Macropetasma Stebbing, 1914 (1)
- Genus Mangalura Miers, 1878 accepted as Metapenaeus Wood-Mason in Wood-Mason & Alcock, 1891
- Genus Marsupenaeus Tirmizi, 1971 accepted as Penaeus Fabricius, 1798
- Genus Megokris Pérez Farfante & Kensley, 1997 (9)
- Genus Melicertus Rafinesque, 1814 accepted as Penaeus Fabricius, 1798
- Genus Metapenaeopsis Bouvier, 1905 (71)
- Genus Metapenaeus Wood-Mason in Wood-Mason & Alcock, 1891 (28)
- Genus Metapeneus Wood-Mason in Wood-Mason & Alcock, 1891 accepted as Metapenaeus Wood-Mason in Wood-Mason & Alcock, 1891
- Genus Microchela Garassino, 1994 †
- Genus Mierspenaeopsis Sakai & Shinomiya, 2011 (4)
- Genus Miyadiella Kubo, 1949 accepted as Atypopenaeus Alcock, 1905
- Genus Neopenaeopsis Bouvier, 1905 accepted as Parapenaeus Smith, 1885
- Genus Oppelicaris Schweigert, Garassino & Pasini, 2016 †
- Genus Paeneus Fabricius, 1798 accepted as Penaeus Fabricius, 1798
- Genus Palaeodusa Pinna, 1974 † accepted as Dusa Münster, 1839 †
- Genus Parapenaeopsis Alcock, 1901 (11)
- Genus Parapenaeus Smith, 1885 (16)
- Genus Parapeneopsis Alcock, 1901 accepted as Parapenaeopsis Alcock, 1901
- Genus Pelagopenaeus Pérez Farfante & Kensley, 1997 (1)
- Genus Penaeopsis Spence Bate, 1881 (7)
- Genus Penaeus Fabricius, 1798 (34)
- Genus Peneopsis Spence Bate, 1881 accepted as Penaeopsis Spence Bate, 1881
- Genus Peneus Fabricius, 1798 accepted as Penaeus Fabricius, 1798
- Genus Protrachypene Burkenroad, 1934 (1)
- Genus Pseudobombur Secrétan, 1975 †
- Genus Pseudocrangon Schlüter, 1862 †
- Genus Pseudodrobna Winkler, 2017 †
- Genus Pseudodusa Schweigert & Garassino, 2004 †
- Genus Rachitia Dana, 1852
- Species Rachitia spinalis Dana, 1852
- Genus Rhodanicaris Van Straelen, 1925 †
- Genus Rimapenaeus Pérez Farfante & Kensley, 1997 (6)
- Genus Satyrus Garassino & Teruzzi, 1993 † accepted as Satyrocaris Garassino & Teruzzi, 1994 †
- Genus Sycionia H. Milne Edwards, 1830 accepted as Sicyonia H. Milne Edwards, 1830
- Genus Tanypenaeus Pérez Farfante, 1972 (1)
- Genus Tiche von der Marck, 1863 †
- Genus Trachypenaeopsis Burkenroad, 1934 (2)
- Genus Trachypenaeus Alcock, 1901 (1)
- Genus Trachypeneus Alcock, 1901 accepted as Trachypenaeus Alcock, 1901
- Genus Trachysalambria Burkenroad, 1934 (12)
- Genus Xiaopenaeus Xing, Liu, McKellar, Luque, Li, Wang, Yi, Sun, Wang & Audo, 2021 †
- Genus Xiphopenaeus Smith, 1869 (4)
- Genus Xiphopeneus Smith, 1869 accepted as Xiphopenaeus Smith, 1869
- Family Penaeoidea incertae sedis †
- Family Sicyoniidae Ortmann, 1898 (52)
- Family Solenoceridae Wood-Mason in Wood-Mason & Alcock, 1891 (81)
- 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