The (Aplacophora) - class
(Caudofoveata) - subclass

(Chaetodermatidae)
- family

(Falcidentidae)
- family

(Limifossoridae)
- family

(Metachaetodermatidae)
- family

(Prochaetodermatidae)
- family

(Scutopodidae)
- family
(Solenogastres) - subclass
(Neomeniamorpha) - order

(Hemimeniidae)
- family

(Neomeniidae)
- family
(Pholidoskepia) - order

(Dondersiidae)
- family

(Gymnomeniidae)
- family

(Lepidomeniidae)
- family

(Macellomeniidae)
- family

(Meiomeniidae)
- family

(Sandalomeniidae)
- family
(Cavibelonia) - order

(Acanthomeniidae)
- family

(Amphimeniidae)
- family

(Drepanomeniidae)
- family

(Epimeniidae)
- family

(Notomeniidae)
- family

(Proneomeniidae)
- family

(Pruvotinidae)
- family

(Rhipidoherpiidae)
- family

(Rhopalomeniidae)
- family

(Simrothiellidae)
- family

(Strophomeniidae)
- family

(Syngenoherpiidae)
- family
(Sterrofustia) - order

(Heteroherpiidae )
- family

(Imeroherpiidae )
- family

(Phyllomeniidae)
- family