Between brackets is the number of accepted extant species

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- Decapoda (17 683)
- Suborder Decapoda incertae sedis †
- Suborder Dendrobranchiata (533)
- Suborder Euzygida accepted as Stenopodidea
- Suborder Heterochelida
- Suborder Macrura
- Suborder Macrura reptantia
- Suborder Natantia
- Suborder Pleocyemata (17 150)
- Infraorder Achelata (153)
- Superfamily Palinuroidea Latreille, 1802 accepted as Achelata
- Family Achelata incertae sedis †
- Family Cancrinidae Buerlen, 1930 †
- Family Palinuridae Latreille, 1802 (61)
- Genus Araeosternus De Man, 1881 accepted as Phyllamphion Reinhardt, 1849
- Genus Archaeocarabus M'Coy, 1849 †
- Genus Archaeopalinurus Pinna, 1974 †
- Genus Astacodes Bell, 1863 † accepted as Palinurus Weber, 1795
- Genus Avus Ortmann, 1891 accepted as Linuparus White, 1847
- Genus Eolinurus Pasini, Garassino, Zorzin & Giusbertii, 2022 †
- Genus Eurycarpus Schlüter in von der Marck & Schlüter, 1868 †
- Genus Isopuerulus Bahamonde, 1965 accepted as Projasus George & Grindley, 1964
- Genus Jasus Parker, 1883 (5)
- Subgenus Jasus (Jasus) Parker, 1883 accepted as Jasus Parker, 1883
- Species Jasus (Jasus) edwardsii (Hutton, 1875) accepted as Jasus edwardsii (Hutton, 1875)
- Species Jasus (Jasus) frontalis (H. Milne Edwards, 1837) accepted as Jasus frontalis (H. Milne Edwards, 1837)
- Species Jasus (Jasus) lalandii (H. Milne Edwards, 1837) accepted as Jasus lalandii (H. Milne Edwards, 1837)
- Species Jasus (Jasus) novaehollandiae Holthuis, 1963 accepted as Jasus edwardsii (Hutton, 1875)
- Species Jasus (Jasus) paulensis (Heller, 1862) accepted as Jasus paulensis (Heller, 1862)
- Species Jasus (Jasus) tristani Holthuis, 1963 accepted as Jasus paulensis (Heller, 1862)
- Subgenus Jasus (Sagmariasus) Holthuis, 1991 accepted as Sagmariasus Holthuis, 1991
- Species Jasus caveorum Webber & Booth, 1995
- Species Jasus edwardsii (Hutton, 1875)
- Species Jasus flemingi Glaessner, 1960 †
- Species Jasus frontalis (H. Milne Edwards, 1837)
- Species Jasus lalandii (H. Milne Edwards, 1837)
- Species Jasus novaehollandiae Holthuis, 1963 accepted as Jasus edwardsii (Hutton, 1875)
- Species Jasus parkeri Stebbing, 1902 accepted as Projasus parkeri (Stebbing, 1902)
- Species Jasus paulensis (Heller, 1862)
- Species Jasus tristani Holthuis, 1963 accepted as Jasus paulensis (Heller, 1862)
- Species Jasus verreauxi (H. Milne Edwards, 1851) accepted as Sagmariasus verreauxi (H. Milne Edwards, 1851)
- Genus Justitia Holthuis, 1946 (1)
- Genus Linuparus White, 1847 (4)
- Genus Nupalirus Kubo, 1955 (3)
- Genus Palaeopalinurellus Fraaije, Van Bakel, Jagt & Brochet, 2020 †
- Genus Palaeopalinurus Bachmayer, 1954 †
- Genus Palaeosynaxes Fraaije, Van Bakel, Jagt, Krobicki, Ossó, Palero & Wallaard, 2023 †
- Genus Palibythus Davie, 1990 (1)
- Genus Palinurellus von Martens, 1878 accepted as Phyllamphion Reinhardt, 1849
- Genus Palinurina Münster, 1839 †
- Genus Palinurus Weber, 1795 (6)
- Genus Palinustus A. Milne-Edwards, 1880 (5)
- Genus Panulirus White, 1847 (22)
- Genus Parallelogastrus Franţescu, 2013 †
- Genus Phalangites Münster, 1839 †
- Genus Phyllamphion Reinhardt, 1849 (2)
- Genus Phyllosoma Leach, 1817 accepted as Panulirus White, 1847
- Genus Podocrates Geinitz, 1850 † accepted as Podocratus Geinitz, 1850 †
- Genus Podocratus Geinitz, 1850 † accepted as Linuparus White, 1847
- Genus Projasus George & Grindley, 1964 (2)
- Genus Puer Ortmann, 1891 accepted as Puerulus Ortmann, 1897
- Genus Puerulus Ortmann, 1897 (9)
- Genus Rugafarius Bishop, 1985 †
- Genus Sagmariasus Holthuis, 1991 (1)
- Genus Senex Pfeffer, 1881 accepted as Panulirus White, 1847
- Genus Synaxes Spence Bate, 1881 accepted as Phyllamphion Reinhardt, 1849
- Genus Thenops Bell, 1858 † accepted as Linuparus White, 1847
- Genus Yunnanopalinura Feldmann, Schweitzer & Zhang in Feldmann, Schweitzer, Hu, Zhang, Zhou, Xie, Huang & Wen, 2012 †
- Family Scyllaridae Latreille, 1825 (92)
- Infraorder Anomura (3 414)
- Infraorder Astacidea (783)
- Infraorder Axiidea (600)
- Infraorder Brachyura (7 883)
- Infraorder Callianassidea accepted as Axiidea
- Infraorder Caridea (3 919)
- Infraorder Gebiidea (252)
- Infraorder Glypheidea (2)
- Infraorder Palaeopalaeomonida †
- Infraorder Polychelida (38)
- Infraorder Procarididea (6)
- Infraorder Stenopodidea (100)
- Suborder Reptantia
- Suborder Trichelida