Overview of Nautilus m . shell (ROM 48997) with annotation of major shell structures, and growth direction.

• Main Authors: Benjamin J. Linzmeier (2622280), Andrew D. Jacobson (3321963), Bradley B. Sageman (8874536), Matthew T. Hurtgen (8869463), Meagan E. Ankney (14307606), Andrew L. Masterson (7106753), Neil H. Landman (6875177)
• Format: Still Image
• Language: unknown
• Published: 2022
• Subjects: Genetics; Molecular Biology; Biotechnology; Evolutionary Biology; Ecology; Developmental Biology; Cancer; Inorganic Chemistry; Science Policy; Infectious Diseases; Plant Biology; Environmental Sciences not elsewhere classified; Chemical Sciences not elsewhere classified; molluscan biomineralization processes; last 130 years; decreasing oxygen concentration; scale paleoecological reconstructions; oxygen isotope equilibrium; div >< p; 40 </ sup; 18 </ sup; 15 </ sup; 13 </ sup; nautilus macromphalus </; others given variability; increasing atmospheric co; affect geochemical change; shell using δ; p </; nautilus </; scale change; spirula </; sepia </; isotope systematics; geochemical response; shock response; shell chemistry; sampling strategy; questions remain; ocean acidification; new caledonia; model organisms; less well; individuals inhabited; eutrophication offshore; environmental changes; easily preserved; data suggest; data hinges; complex ecology; Nautilus; Ocean acidification
• Online Access: https://doi.org/10.1371/journal.pone.0277666.g001

Nautilus shells grow in a spiral and septa are secreted to allow for the maintenance of neutral buoyancy during growth through the removal of liquid from the chambers [ 17 ]. Shells comprise two major structural forms of aragonite, the inner nacreous layer and outer spherulitic prismatic layer [ 18 , 19 ].