Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota J.R. Wagner, 2004 [J. Wiemann et al., 2020]
           Domain Bacteria (Haeckel, 1894) C.R. Woese et al., 1990 [paraphyletic?]
             Phylum "Deltaproteobacteria" Kuever et al., 2006 [polyphyletic]
               Class Deltaproteobacteriaᵀ Kuever et al., 2006
                 Order Myxococcales Tchan et al., 1948, nom. approb.
                   Suborder Sorangiineae Reichenbach, 2007, orth. corr.
                     Family Polyangiaceaeᵀ Jahn, 1924, nom. approb.
                       Genus Polyangiumᵀ Link, 1809, nom. approb.
                         1 Polyangium aureum Krzemieniewska & Krzemieniewski, 1930 ex Brockman, 1989, nom. rev.
                         2 Polyangium fumosum Krzemieniewska & Krzemieniewski, 1930, nom. approb.
                         3 Polyangium luteum Krzemieniewska & Krzemieniewski, 1927 ex Brockman, 1989, nom. rev.
                         4 Polyangium parasiticum Geitler, 1924 ex Brockman, 1989, nom. rev.
                         5 Polyangium sorediatum Thaxter, 1904 ex Brockman, 1989, nom. rev.
                         6 Polyangium spumosum Krzemieniewska & Krzemieniewski, 1927 ex Brockman, 1989, nom. rev.
                         7 Polyangium vitellinumᵀ Link, 1809, nom. approb.