Allemanella M. R. Cooper, 2023 † (original description)
Allemanella biroi (E. Pérez & Reyes, 1986) † (basis of record)
Allemanella boiti (Lissón, 1930) † (basis of record)
Allemanella brocardoi (H. A. Leanza, 1993) † accepted as Allemanella sigeli (H. A. Leanza & Garate Zubillaga, 1987) † (basis of record)
Allemanella chilensis (E. Pérez & Reyes, 1986) † (basis of record)
Allemanella obesa (E. Pérez & Reyes, 1997) † (basis of record)
Allemanella sigeli (H. A. Leanza & Garate Zubillaga, 1987) † (basis of record)
Buchotrigonia (Syrotrigonia) biroi E. Pérez & Reyes, 1986 † accepted as Allemanella biroi (E. Pérez & Reyes, 1986) † (basis of record)
Buchotrigonia (Syrotrigonia) chilensis E. Pérez & Reyes, 1986 † accepted as Allemanella chilensis (E. Pérez & Reyes, 1986) † (basis of record)
Etayosernella M. R. Cooper, 2023 † (original description)
Etayosernella noetlingi M. R. Cooper, 2023 † (original description)
Etayosernella scheibei (Dietrich, 1938) † (basis of record)
Incagonia M. R. Cooper, 2023 † (original description)
Incagonia flexicostata (Fritzsche, 1924) † (basis of record)
Incagonia forti (Lissón, 1930) † (basis of record)
Incagonia gerthi (Lissón, 1930) † (basis of record)
Incagonia inca (Fritzsche, 1924) † (basis of record)
Incagonia lorentii (Dana, 1849) † (basis of record)
Incagonia mathewsi (E. F. Richards, 1947) † (basis of record)
Incagonia paradisensis (Lissón, 1907) † (basis of record)
Levantotrigonia M. Nakano, 1977 † (basis of record)
Lusitanigonia M. R. Cooper, 2023 † (original description)
Lusitanigonia kobyi (Choffat, 1885) † (basis of record)
Lycettitrigonia analoga (Douvillé, 1916) † accepted as Valenciella analoga (Douvillé, 1916) † (basis of record)
Lycettitrigonia depauperata (Douvillé, 1916) † accepted as Valenciella depauperata (Douvillé, 1916) † (basis of record)
Lycettitrigonia undulatocostata (Blanckenhorn, 1890) † accepted as Valenciella undulatocostata (Blanckenhorn, 1890) † (basis of record)
Maputrigonia H. A. Leanza, 1985 † (basis of record)
Maputrigonia hugoi H. A. Leanza, 1985 † (basis of record)
Nanotrigonia minuta (Stoliczka, 1870) † (basis of record)
Quoiecchia sigeli H. A. Leanza & Garate Zubillaga, 1987 † accepted as Allemanella sigeli (H. A. Leanza & Garate Zubillaga, 1987) † (basis of record)
Syrotrigonia brocardoi H. A. Leanza, 1993 † accepted as Allemanella brocardoi (H. A. Leanza, 1993) † accepted as Allemanella sigeli (H. A. Leanza & Garate Zubillaga, 1987) † (basis of record)
Syrotrigonia collombi (Vilanova y Piera, 1863) † (basis of record)
Syrotrigonia deshayesi (Vilanova y Piera, 1863) † (basis of record)
Syrotrigonia obesa E. Pérez & Reyes, 1997 † accepted as Allemanella obesa (E. Pérez & Reyes, 1997) † (basis of record)
Syrotrigoniinae E. Pérez & Reyes, 1997 † (basis of record)
Trigonia boiti Lissón, 1930 † accepted as Allemanella boiti (Lissón, 1930) † (basis of record)
Trigonia collombi Vilanova y Piera, 1863 † accepted as Syrotrigonia collombi (Vilanova y Piera, 1863) † (basis of record)
Trigonia deshayesi Vilanova y Piera, 1863 † accepted as Syrotrigonia deshayesi (Vilanova y Piera, 1863) † (basis of record)
Trigonia forti Lissón, 1930 † accepted as Incagonia forti (Lissón, 1930) † (basis of record)
Trigonia freixialensis Choffat, 1885 † accepted as Lusitanigonia freixialensis (Choffat, 1885) † (basis of record)
Trigonia gerthi Lissón, 1930 † accepted as Incagonia gerthi (Lissón, 1930) † (basis of record)
Trigonia higazyi Abbass, 1962 † accepted as Valenciella higazyi (Abbass, 1962) † (basis of record)
Trigonia inca Fritzsche, 1924 † accepted as Incagonia inca (Fritzsche, 1924) † (basis of record)
Trigonia kobyi Choffat, 1885 † accepted as Lusitanigonia kobyi (Choffat, 1885) † (basis of record)
Trigonia lorentii Dana, 1849 † accepted as Incagonia lorentii (Dana, 1849) † (basis of record)
Trigonia loutfyi Abbass, 1962 † accepted as Valenciella loutfyi (Abbass, 1962) † (basis of record)
Trigonia mathewsi E. F. Richards, 1947 † accepted as Incagonia mathewsi (E. F. Richards, 1947) † (basis of record)
Trigonia paradisensis Lissón, 1907 † accepted as Incagonia paradisensis (Lissón, 1907) † (basis of record)
Trigonia steinmanni Lissón, 1930 † accepted as Incagonia mathewsi (E. F. Richards, 1947) † (basis of record)
Valenciella M. R. Cooper, 2023 † (original description)
Valenciella depauperata (Douvillé, 1916) † (basis of record)
Valenciella higazyi (Abbass, 1962) † (basis of record)
Valenciella loutfyi (Abbass, 1962) † (basis of record)
Valenciella magharensis (Abbass, 1962) † (basis of record)
Valenciella picteti (Coquand, 1863) † (basis of record)
Valenciella undulatocostata (Blanckenhorn, 1890) † (basis of record)
Virgotrigonia Alleman, 1985 † (basis of record)
Virgotrigonia hugoi (H. A. Leanza, 1985) † accepted as Maputrigonia hugoi H. A. Leanza, 1985 † (basis of record)
Zulutrigonia dacquei M. R. Cooper, 2023 † (original description)