Annelida Lamarck, 1809 - segmented worms
   Class Polychaeta Grube, 1850 - polychaetes
     Order Aeolosomatida
       Family Aeolosomatidae Beddard, 1895
         Genus [Aeolosoma] Ehrenberg, 1828
           1 Aeolosoma leidyi Cragin, 1887
           2 Aeolosoma gertae Marcus, 1944