 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 | | Protostomia Grobben, 1908 | | Lophotrochozoa K.M. Halanych et al., 1995 - lophotrochozoans | | Spiralia - spiralians | | Phoronozoa | | Phylum Brachiopoda Duméril, 1806 - brachiopods |  Genus †Acanthotretella Holmer & Caron, 2006 |  †Acanthotretella spinosa Holmer & Caron, 2006 |
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