Arthropoda
Acmarhachis Resser, 1938
Connagnostus Öpik, 1967
Micragnostus Howell, 1935
Proagnostus Butts, 1926
Qidalagnostus
Skryjagnostus Snajdr, 1957
Stigmagnostus Poulsen, 1960
Trilobagnostus Harrington, 1938