Arthropoda
Acheilus Raymond, 1924
Buttsia Wilson, 1951
Catillicephala Raymond, 1937
Cephalocoelia Raymond, 1937
Denisia Clark, 1924
Distazeris Raymond, 1937
Onchonotellus Lermontova, 1951
Pemphigaspis Hall, 1863
Stenochilina Ulrich, 1931
Theodenisia Clark, 1948
Triarthropsis Ulrich, 1931
Yukonaspis Kobayashi, 1936