organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Order Mysida Haworth, 1825 - mysids
     Family Petalophthalmidae Czerniavsky, 1882
       Genus Petalophthalmus Willemoes-Suhm, 1874
         1 Petalophthalmus armiger Willemöes-Suhm, 1875