[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Cephalopoda Cuvier, 1795 - cephalopods
       Family Opisthoteuthidae Verrill, 1896
         1 Genus Opisthoteuthis Verrill, 1883
         2 Genus Grimpoteuthis Robson, 1932