Shirakiellidae

Ambonolium Raymond, 1924

Aojia Kobayashi, 1935

Ataktaspis Lochman & Duncan, 1944

Bienella Lochman, 1944

Chuangia Walcott, 1911

Girandia Kobayashi, 1943

Hardia

Idamea Whitehouse, 1939

Illaenurus Hall, 1863

Kiowaia Frederickson, 1949

Komaspidella Kobayashi, 1938

Lisania Walcott, 1911

Mansuyia Sun, 1925

Nixonella Lochman, 1944

Ordosia Lu, 1954

Platydiamesus Raymond, 1937

Prochuangia Kobayashi, 1935

Rasettia Lochman, 1953

Resseraspis Rasetti, 1945

Shirakiella Kobayashi, 1935

Strigigenalis Whittington & Ross, 1953