Nucleolitidae L. Agassiz & Desor, 1847

Bothryopneustes Fourtau, 1924

Catopygus Agassiz, 1836

Clypeopygus d'Orbigny, 1856

Crotoclypeus Pomel, 1883

Nucleolites Lamarck, 1801

Ochetus Pomel, 1883

Phyllobrissus Cotteau, 1859

Phyllobryssus Quenstedt, 1874

Pigaulus Coquand, 1862

Pygorhynchus Agassiz, 1839