life
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Empire Eukaryota (Chatton, 1925)
 see Domain Eukaryota Chatton, 1925
    
 Kingdom Chromista Caval.-Sm. (1981) - chromists
      
 Subkingdom Chromobiota Caval.-Sm. (1991)
        
 Infrakingdom Heterokonta Caval.-Sm. (1986) - heterokonts
 see Superphylum Heterokonta Caval.-Sm. (1986)
          
 Superphylum Sagenista Caval.-Sm. (1995) [monotypic]
 see Subphylum Sagenista Cavalier-Smith, 1995
            
 Phylum Sagenista Caval.-Sm. (1995)
 see Subphylum Sagenista Cavalier-Smith, 1995
              
 Subphylum Labyrinthista Caval.-Sm. (1989)
 see Phylum Bigyra Cavalier-Smith, 1998
                
 Genus Thraustochytrium Sparrow (1936)
 see Genus Thraustochytrium Sparrow, 1936