Arthropoda
Arethusina Barrande, 1849
Aulacopleura Hawle & Corda, 1847
Cyphapsis Barrande, 1846
Cyphaspides Novak, 1890
Cyphaspis Burmeister, 1843
Harpidella M'Coy, 1849
Maurotarion Alberti, 1969
Namuropyge Richter, 1939
Otarion Zenker, 1833
Otarium Agassiz, 1846
Panarchaeogonus Öpik, 1937
Rhinotarion Whittington & Campbell, 1967