Achelata (infraorder) spiny lobsters, slipper lobsters Anomura (infraorder) Astacidea (infraorder) Axiidea (infraorder) Brachyura (infraorder)

Caridea (infraorder) Alpheoidea Atyoidea Bresilioidea Campylonotoidea Crangonoidea Galatheacaridoidea Nematocarcinoidea Oplophoroidea Palaemonoidea Pandaloidea Pasiphaeoidea Physetocaridoidea Processoidea Psalidopodoidea Stylodactyloidea Gebiidea (infraorder) Glypheidea (infraorder) Polychelida (infraorder) fossils Stenopodidea (infraorder)