Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Peridiniobiota Starobogatov ex Doweld (2001)
       Subkingdom Parameciobiotina Starobogatov, 1986 [monotypic]
         Phylum Parameciozoa Kussakin & Drozdov, 1998
           Subphylum Oxytrichozoina Doweld, 2001
             Class Oxytrichatea Doweld, 2001
               Subclass Strobilidiatinea Doweld, 2001 [monotypic]
                 Order Strobilidiida Doweld, 2001 [monotypic]
                   Family Strobilidiidae Kahl, 1929
                     Genus Strobilidium Schewiakoff, 1892