Acyaris Royal, 1909 accepted as Ascaris Linnaeus, 1758 (verified source for family)
Amphisakis Chakravarty & Majumdar, 1960 (verified source for family)
Amplicaecum Baylis, 1920 (verified source for family)
Angusticaecum Baylis, 1920 (verified source for family)
Ascaria Linstow, 1889 accepted as Ascaris Linnaeus, 1758 (verified source for family)
Ascarites Poinar & Boucot, 2006 (verified source for family)
Ascarus accepted as Ascaris Linnaeus, 1758 (verified source for family)
Ascoria Huber, 1896 accepted as Ascaris Linnaeus, 1758 (verified source for family)
Asearis Brandes, 1898 accepted as Ascaris Linnaeus, 1758 (verified source for family)
Askaris Humboldt, 1808 accepted as Ascaris Linnaeus, 1758 (verified source for family)
Bairdascaris Sprent, 1982 (verified source for family)
Baylisascaris Sprent, 1968 (verified source for family)
Belanisakis Maplestone, 1932 accepted as Porrocaecum Railliet & Henry, 1912 (verified source for family)
Belascaris Leiper, 1907 accepted as Toxocara Stiles in Stiles & Hassall, 1905 (verified source for family)
Dujardinia Gedoelst, 1916 accepted as Dujardinascaris Baylis, 1947 (verified source for family)
Freitasascaris Sprent, 1983 (verified source for family)
Fusaria Zeder in Goeze, 1800 accepted as Ascaris Linnaeus, 1758 (verified source for family)
Gedoelstascaris Sprent, 1978 accepted as Multicaecum Baylis, 1923 (verified source for family)
Hartwichia Chabaud & Bain, 1966 † (verified source for family)
Hexametra Travassos, 1920 (verified source for family)
Krefftascaris Sprent, 1980 (verified source for family)
Lagocheilascaris Castellani & Chalmers, 1913 accepted as Lagochilascaris Leiper, 1909 (verified source for family)
Lagochilascaris Leiper, 1909 (verified source for family)
Laymanicaecum Mozgovoi in Skrjabin et al., 1951 accepted as Porrocaecum Railliet & Henry, 1912 (verified source for family)
Lombricoides Mérat, 1821 accepted as Ascaris Linnaeus, 1758 (verified source for family)
Mariporrocaecum Sheenko, 1985 (verified source for family)
Mehdiascaris Kalyankar, 1969 (verified source for family)
Metascaris Schuurmans Stekhoven, 1951 (verified source for family)
Multicaecum Baylis, 1923 (verified source for family)
Ophidascaris Baylis, 1920 (verified source for family)
Orneoascaris Skrjabin, 1916 accepted as Amplicaecum Baylis, 1920 (verified source for family)
Ortleppascaris Sprent, 1978 (verified source for family)
Pandascaris Porter, 1948 (verified source for family)
Paraheterophyllum Johnston & Mawson, 1948 accepted as Paraheterotyphlum Johnston & Mawson, 1948 (verified source for family)
Paraheterotyphlum Johnston & Mawson, 1948 (verified source for family)
Parascaris Yorke & Maplestone, 1926 (verified source for family)
Pelecanascaris Ali & Farooqui, 1970 accepted as Pelicanascaris Ali & Farooqui in Singh & Tandan, 1970 (verified source for family)
Pelicanascaris Ali & Farooqui in Singh & Tandan, 1970 (verified source for family)
Polycaecum Maplestone, 1930 accepted as Multicaecum Baylis, 1923 (verified source for family)
Polydelphis Dujardin, 1844 (verified source for family)
Polydelphys Creplin, 1848 accepted as Polydelphis Dujardin, 1844 (verified source for family)
Pseudostrongyloides Kreis, 1940 (verified source for family)
Raillietascaris Sprent, 1985 (verified source for family)
Seuratascaris Sprent, 1985 (verified source for family)
Sprentascaris Petter & Cassone, 1984 (verified source for family)
Stomachida Pereboom, 1780 accepted as Ascaris Linnaeus, 1758 (verified source for family)
Toxascaris Leiper, 1907 (verified source for family)
Travassosascaris Sprent, 1978 (verified source for family)
Trispiculascaris Skrjabin in Dogiel & Sokolow, 1916 accepted as Dujardinascaris Baylis, 1947 (verified source for family)