organisms
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Domain eukaryotes
 see Domain Eukaryota Chatton, 1925
    
 related to multicellular groups
      
 Phylum Microsporida Balbiani, 1882
 see Phylum Microsporidia Balbiani, 1882
        
 Genus Pyrotheca Hesse, 1935
          
 1 Pyrotheca hydropsycheae Xie & E.U.Canning, 1986
          
 2 Pyrotheca cyclopisᵀ (Leblanc, 1930)