Description: Shell cross-sections in Museum of Science, Boston, Massachusetts, USA. Note that there was no prohibition against photography in the museum. Date: 2 January 2010. Source: Own work. Author: Daderot. Permission(Reusing this file): Public domain.
Description: English: Internal calcareous structures of the siphuncule in a nautiloid shell. Date: 10 September 2008 (upload date). Source: Own work. Author: Antonov.
Description: Nautilus in Berlin Zoo Aquarium. Date: 1 May 2007. Source: Sony 4MPix. Author: J. Baecker. Camera location52° 30′ 21.56″ N, 13° 20′ 26.7″ EView all coordinates using: OpenStreetMap 52.505989; 13.340750.
Description: Nautilus, photographed at Siam Ocean World aquarium, Bangkok. Date: 20 October 2006. Source: Own work. Author: User:TheMadBaron. Permission (Reusing this file): Public domainPublic domainfalsefalse. : This work has been released into the public domain by its author, TheMadBaron at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: TheMadBaron grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.Public domainPublic domainfalsefalse.