Order Exogenida Collin, 1912

Fam. Corynophryidae Jankowski, 1981
Fam. Ephelotidae Kent, 1882
Fam. Metacinetidae Bütschli, 1889
Fam. Ophryodendridae Stein, 1867
Fam. Paracinetidae Jankowski, 1978
Fam. Parapodophryidae Jankowski, 1973
Fam. Phalacrocleptidae Kozloff, 1966
Fam. Podophryidae Haeckel, 1866
Fam. Rhabdophryidae Jankowski, 1970
Fam. Spelaeophryidae Jankowski in Batisse, 1975
Fam. Stylostomatidae Batisse, 1975
Fam. Tachyblastonidae Grell, 1950
Fam. Thecacinetidae Matthes, 1956
Fam. Urnulidae Fraipont, 1878