Rhynchonellata
Arenorthis Havlicek, 1970
Cacemia Mitchell, 1974
Cilinella Havlicek, 1970
Heterorthella Harper, Boucot & Walmsley, 1969
Heterorthina Bancroft, 1928
Heterorthis Hall & Clarke, 1892
Incorthis Havlicek & Branisa, 1980
Marionites Cooper & Muir-Wood, 1951
Svobodaina Havlicek, 1950
Tafilaltia Havlicek, 1970
Tarfaya Havlicek, 1971
Tissintia Havlicek, 1970
