Thecideida Elliot, 1958

Arctireta

Bactryniidae

Bitternella

Elliottina Pajaud, 1963

Enallothecideidae

Hungarithecidae

Lakhmina Oehlert, 1887

Pacymoorellina

Thecideidae Gray, 1840

Thecidellinidae Elliot, 1958

Thecospirellidae