Timeline for sample ages, pCO 2 , and human settlement of New Caledonia.

• 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; East Antarctica; Law Dome; Nautilus; Antarc*; Antarctica; Ocean acidification
• Online Access: https://doi.org/10.1371/journal.pone.0277666.g003

Red vertical bars represent the age of specimens used in this study with the museum repositories noted (American Museum of Natural History—AMNH, Field Museum of Natural History—FMNH, and Royal Ontario Museum—ROM). Yellow vertical bar represents indigenous settlement as demonstrated by landscape change observed in lacustrine sediments ~3000 BCE [ 33 ]. French invasion occurred in the mid-1800’s. The comparative record of pCO 2 change showing industrial increases is from Law Dome, East Antarctica [ 37 ].