eukaryotes
 see Domain Eukaryota Chatton, 1925
  
 Kingdom Protozoa Goldfuss, 1818 [paraphyletic] - protozoa
    
 Subkingdom Natozoa Cavalier-Smith, 2021 [paraphyletic]
      
 Infrakingdom Eozoa Cavalier-Smith, 1997
 see Clade Discoba Simpson 2009
        
 Superphylum Discicristata Cavalier-Smith, 1998
          
 Phylum Percolozoa Cavalier-Smith, 1992
            
 Subphylum Tetramitia Cavalier-Smith, 1993
              
 Infraphylum Eutetramitia Hanousková, Táborský & Čepička, 2018
                
 1 Class Heterolobosea Page & Blanton, 1985
                
 2 Class Lyromonadea Cavalier-Smith, 1993
                
 3 Class Percolatea Cavalier-Smith, 2003