Heterobranchia Burmeister, 1837 see Superorder Heterobranchia Burmeister, 1837
   Euthyneura s.l. Spengel, 1881
     Tectipleura Schrödl, Jörger, Klussmann-Kolb & Wilson, 2011
       Euopisthobranchia Jörger, Stöger, Kano, Fukuda, Knebelsberger & Schrödl, 2010
         Runcinacea Colosi, 1915 see Order Runcinacea Colosi, 1915