Trigoniidae Lamarck, 1819
Trigonia bronni Agassiz
Trigonia castrovillensis
Trigonia caudata Agassiz
Trigonia cinctura Etheridge
Trigonia clavielatta
Trigonia coqueiroensis
Trigonia cragini
Trigonia denticulata Agassiz
Trigonia eufaulensis
Trigonia gibbosa J. Sowerby, 1819
Trigonia guildi
Trigonia intersitans Tate
Trigonia kitchini
Trigonia maloneana
Trigonia mearnsi
Trigonia miriana Skwarko, 1963
Trigonia moorei Lycett, 1870
Trigonia navis Lamarck
Trigonia perlata Agassiz
Trigonia pseudocaudata
Trigonia pullus J de C. Sowerby, 1826
Trigonia reesidei
Trigonia resoluta
Trigonia saavedra
Trigonia semiundulata
Trigonia (Trigonia) signicollina
Trigonia spinosa Parkinson
Trigonia stantoni
Trigonia stolleyi
Trigonia sulcata
Trigonia taffi
Trigonia theracica
Trigonia thoracia
Trigonia vyschetzkii
Trigonia weaveri