[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Osteichthyes Huxley, 1880 - bony fishes and tetrapods see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
       Order Osmeriformes Regan, 1913 - freshwater smelts
         1 Family Argentinidae Bonaparte, 1846 - argentines
         2 Family Microstomatidae Bleeker, 1859 - pencilsmelts
         3 Family Bathylagidae Gill, 1884 - deepsea smelts
         4 Family Opisthoproctidae Schmidt, 1918 - spookfishes
         5 Family Alepocephalidae Bonaparte, 1846 - slickheads
         6 Family Platytroctidae Koefoed, 1927 - tubeshoulders
         7 Family Osmeridae Regan, 1913 - smelts
         8 Family Leptochilichthyidae - leptochilichthyids see Family Alepocephalidae Bonaparte, 1846