Phylum Mollusca Linnaeus, 1758 - molluscs
Count: [*†*] 8c;49o;641f;6099g; †2f;162g [24 Jan 2022]
   Class Cephalopoda Cuvier, 1795 - cephalopods
  Count: [*] 6o;52f;176g [18 Dec 2021]
     Subclass Nautiloida Agassiz, 1848 see Subclass Nautiloidea Agassiz, 1848
    Count: [*] 1o;3f;5g
       Order Nautilida Agassiz, 1848
      Count: [*] 3f;5g
         Suborder Nautilina Agassiz, 1848
        Count: [*] 3f;5g
           Superfamily Nautiloidea Blainville, 1825
          Count: [*] 3f;5g [15 Dec 2021]
             Family Nautilidae Blainville, 1825
            Count: [*] 3g [15 Dec 2021]
               Genus Eutrephoceras Hyatt, 1894
              Count: -