 Natura - nature | | Mundus Plinius - physical world | | Naturalia - natural bodies | | Biota | | Domain Eukaryota Chatton, 1925 - eukaryotes | | Unikonta | | Opisthokonta Cavalier-Smith, 1987 | | Holozoa | | Kingdom Animalia C. Linnaeus, 1758 - animals | | Epitheliozoa Ax, 1996 | | Eumetazoa Bütschli, 1910 - eumetazoans | | Bilateria Hatschek, 1888 - bilaterians | | Eubilateria Ax, 1987 | | Deuterostomia Grobben, 1908 - deuterostomes | | Phylum Chordata Bateson, 1885 - chordates | | Subphylum Vertebrata Cuvier, 1812 - vertebrates | | Infraphylum Gnathostomata auct. - jawed vertebrates |  Class †Acanthodii |  Genus †Acanthodius |  Genus †Diplacanthus Agassiz, (1844) | | Genus †Tetanopsyrus Gagnier, Wilson & Hanke, 1999 | | Genus †Brochoadmones Bernacsek & Dineley, 1977 | | Genus †Gemuendolepis Gross, 1973 | | Genus †Gladiobranchus Bernacsek & Dineley, 1977 | | Genus †Gomphacanthus Davis, 1884 | | Genus †Homacanthus Agassiz, 1845 | | Genus †Machaeracanthus Newberry, 1857 | | Genus †Nodocosta Gross, 1940 | | Genus †Nodonchus White, 1961 | | Genus †Oracanthus Agassiz, 1837 | | Order †Climatiiformes | | Order †Ischnacanthiformes | | Order †Acanthodiformes™
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