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)
- 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)
- Family Axianassidae Schmitt, 1924 accepted as Laomediidae Borradaile, 1903
- Family Gebiadae Haworth, 1825 accepted as Upogebiidae Borradaile, 1903
- Family Kuwaitupogebiidae Sakai, Türkay & Al Aidaroos, 2015 accepted as Upogebiidae Borradaile, 1903
- Family Laomediidae Borradaile, 1903 (42)
- Family Thalassinidae Latreille, 1831 (12)
- Family Upogebiidae Borradaile, 1903 (198)
- Subfamily Neogebiculinae Sakai, 2006 accepted as Upogebiidae Borradaile, 1903
- Subfamily Upogebiinae Borradaile, 1903 accepted as Upogebiidae Borradaile, 1903
- Genus Acutigebia Sakai, 1982 (6)
- Genus Aethogebia Williams, 1993 (1)
- Genus Arabigebicula Sakai, 2006 (1)
- Species Arabigebicula rhynchos Sakai, 2006
- Genus Austinogebia Ngoc-Ho, 2001 (8)
- Genus Bigea Nardo, 1869 accepted as Upogebia Leach, 1814
- Genus Bigea Nardo, 1847 accepted as Bigea Nardo, 1869
- Genus Calliadne Strahl, 1862 accepted as Upogebia Leach, 1814
- Genus Gebia Leach, 1816 accepted as Upogebia Leach, 1814
- Genus Gebiacantha Ngoc-Ho, 1989 (20)
- Genus Gebicula Alcock, 1901 (2)
- Genus Gebiopsis A. Milne-Edwards, 1867 accepted as Upogebia Leach, 1814
- Genus Mantisgebia Sakai, 2006 (4)
- Genus Neogebicula Sakai, 1982 (19)
- Genus Paragebicula Sakai, 2006 accepted as Neogebicula Sakai, 1982
- Genus Pomatogebia Williams & Ngoc-Ho, 1990 (3)
- Genus Tuerkayogebia Sakai, 1982 (1)
- Genus Upogebia Leach, 1814 (126)
- Genus Wolffogebia Sakai, 1982 (7)
- Infraorder Glypheidea (2)
- Infraorder Palaeopalaeomonida †
- Infraorder Polychelida (38)
- Infraorder Procarididea (6)
- Infraorder Stenopodidea (100)
- Suborder Reptantia
- Suborder Trichelida