Trigoniidae Lamarck, 1819
Eotrigonia eocenica Darragh, 1986
Eotrigonia intersitans (Tate, 1896)
Eotrigonia paleocenia Darragh, 1986
Eotrigonia paleocenica Darragh, 1986
Eotrigonia semiundulata
Eotrigonia subundulata (Jenkins, 1865)
Eotrigonia tubulifera (Tate, 1885)
