Family Nautilidae : 2 Genus
 1/2  Genus Allonautilus : 1 Species 
   1/1 Allonautilus scrobiculatus
 2/2  Genus Nautilus : 6 Species 
   1/6 Nautilus macromphalus
   2/6 Nautilus pompilius
   3/6 Nautilus samoaensis
   4/6 Nautilus stenomphalus
   5/6 Nautilus vanuatuensis
   6/6 Nautilus vitiensis
7 Species in Nautilidae 

(Extracted from WoRMS on October 2025)
NB: status "accepted" and "extant, not fossile-only"