Bellerophon (Bellerophon) Montfort, 1808 † accepted as Bellerophon Montfort, 1808 † (basis of record)
Bellerophon (Bellerophon) hilli Yochelson, 1960 † (original description)
Bellerophon (Bellerophon) kingorum Yochelson, 1960 † accepted as Bellerophon kingorum Yochelson, 1960 † (original description)
Bellerophon (Bellerophon) lineatus Yochelson, 1960 † accepted as Waagenella lineata (Yochelson, 1960) † (original description)
Bellerophon (Bellerophon) plummeri Yochelson, 1960 † accepted as Bellerophon plummeri Yochelson, 1960 † accepted as Waagenella plummeri (Yochelson, 1960) † (original description)
Bellerophon (Pharkidonotus) Girty, 1911 † accepted as Pharkidonotus Girty, 1911 † (basis of record)
Bellerophon (Pharkidonotus) westi Yochelson, 1960 † accepted as Pharkidonotus westi (Yochelson, 1960) † (original description)
Bellerophon depauperatus Branson, 1930 † (status source)
Bucanellinae Koken, 1925 † accepted as Bucanellidae Koken, 1925 † (basis of record)
Euphemites Warthin, 1930 † (additional source)
Euphemites aequisulcatus Chronic, 1952 † (basis of record)
Euphemites batteni Yochelson, 1960 † (original description)
Euphemites crenulatus Yochelson, 1960 † (original description)
Euphemites exquisitus Yochelson, 1960 † (original description)
Euphemites imperator Yochelson, 1960 † (original description)
Euphemites kingi Yochelson, 1960 † (original description)
Euphemites luxuriosus Yochelson, 1960 † (original description)
Euphemites sparcilliratus Yochelson, 1960 † (original description)
Euphemitinae Knight, 1956 † accepted as Euphemitidae Knight, 1956 † (basis of record)
Euphemitopsis Yochelson, 1960 † (original description)
Euphemitopsis circumcostatus (Walter, 1953) † (taxonomy source)
Euphemitopsis multinodosa Yochelson, 1960 † (original description)
Euphemitopsis paucinodosa Yochelson, 1960 † (original description)
Knightites R. C. Moore, 1941 † (basis of record)
Knightites (Knightites) R. C. Moore, 1941 † accepted as Knightites R. C. Moore, 1941 † (basis of record)
Knightites (Retispira) Knight, 1945 † accepted as Retispira Knight, 1945 † (basis of record)
Knightites (Retispira) eximia Yochelson, 1960 † accepted as Yochelsonellisa eximia (Yochelson, 1960) † (original description)
Knightites (Retispira) girtyi Yochelson, 1960 † accepted as Retispira lyelli (Gemmellaro, 1889) † (original description)
Knightites (Retispira) tenuilineata (Gurley, 1884) † accepted as Retispira tenuilineata (Gurley, 1884) † (basis of record)
Knightitinae Knight, 1956 † (basis of record)
Lepetopsis Whitfield, 1882 † (additional source)
Lepetopsis beedei Yochelson, 1960 † accepted as Novlepatella beedei (Yochelson, 1960) † (original description)
Lepetopsis capitanensis (Girty, 1909) † (basis of record)
Lepetopsis parrishi Gurley, 1884 † accepted as Novlepatella parrishi (Gurley, 1884) † (basis of record)
Lepetopsis patella Yochelson, 1960 † accepted as Novlepatella patella (Yochelson, 1960) † (original description)
Metoptoma J. Phillips, 1836 † (additional source)
Metoptoma texana Yochelson, 1960 † (original description)
Metoptomatidae Wenz, 1938 † (additional source)
Patellilabia Knight, 1945 † (basis of record)
Sinuitidae Dall, 1913 † (additional source)
Sinuitina Knight, 1945 † (basis of record)
Sinuitina keytei Yochelson, 1960 † (original description)
Sphaerocyclus Perner, 1903 † (additional source)
Warthia americana Girty, 1908 † (basis of record)
Warthia angustior Yochelson, 1960 † (original description)
Warthia crassus Yochelson, 1960 † (original description)
Warthia fissus Yochelson, 1960 † (original description)
Warthia saundersi Yochelson, 1960 † (original description)
Warthia waageni Yochelson, 1960 † (original description)
Warthia welleri Yochelson, 1960 † (original description)