The order contains two families.

Family Andrognathidae Cope, 1869
Andrognathus
Bazillozonium
Brachycybe
Corcyrozonium
Dolistenus
Fioria
Gosodesmus
Ischnocybe
Mitocybe
Pseudodesmus
Sumatronium
Symphyopleurium
Trichozonium
Yamasinaium
Zinaceps
Zinazonium
Family Platydesmidae DeSaussure, 1860
Desmethus
Platydesmus
The order contains two families.
Family Andrognathidae Cope, 1869
Andrognathus
Bazillozonium
Brachycybe
Corcyrozonium
Dolistenus
Fioria
Gosodesmus
Ischnocybe
Mitocybe
Pseudodesmus
Sumatronium
Symphyopleurium
Trichozonium
Yamasinaium
Zinaceps
Zinazonium
Family Platydesmidae DeSaussure, 1860
Desmethus
Platydesmus
Platydesmida