| Adelphotectonica Bieler, 1987 |
| Adelphotectonica uruguaya (Carcelles, 1953) |
| Architectonica Röding, 1798 |
| Architectonica (Philippia) Gray, 1847 |
| Architectonica (Philippia) krebsii Mörch, 1875 |
| Architectonica nobilis Röding, 1798 |
| Architectonica placentalis (Hinds, 1844) |
| Architectonica tricarinata Stearns, 1872 |
| Architectonica valenciennesi Mörch, 1860 |
| Architectonicidae Gray, 1850 |
| Discotectonica Marwick, 1931 |
| Discotectonica discus (Philippi, 1844) |
| Discotectonica placentalis (Hinds, 1844) |
| Heliacus d'Orbigny, 1842 |
| Heliacus architae (Costa, 1844) |
| Heliacus bicanaliculatus (Valenciennes, 1832) |
| Heliacus bisulcatus (d'Orbigny, 1842) |
| Heliacus cylindricus (Gmelin, 1791) |
| Heliacus perrieri (Rochebrune, 1881) |
| Pseudomalaxis P. Fischer, 1885 |