[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Annelida Lamarck, 1809 - segmented worms
     Class Polychaeta Grube, 1850 - polychaetes
       Family Chaetopteridae Malmgren, 1867
         Genus Spiochaetopterus M. Sars, 1853
           1 Spiochaetopterus bergensis Gitay, 1969
           2 Spiochaetopterus solitarius (Rioja, 1917)
           3 Spiochaetopterus costarum (Claparède, 1868)
           4 Spiochaetopterus typicus M. Sars, 1856