Fig. 1: Geographic regions and workflow.
From: Fossil isotope evidence for trophic simplification on modern Caribbean reefs
a, Caribbean regional map and sampling locations within Bocas del Toro, Panama (southwest Caribbean, left) and the Dominican Republic (eastern Caribbean, right) (refer to Extended Data Fig. 1 and Supplementary Table 3 for detailed locality information for modern (red) and fossil (blue) sites). b, Sediment sampling of the coral reef framework in modern and fossil coral reefs. c, Assorted specimens of coral reef matrix-sourced fossil fish otoliths viewed under a dissecting microscope and inset showing example scanning electron microscopy (SEM) images of the cleaned otoliths and coral skeletal material. From top to bottom in the inset we show representative otoliths from each family (Fig. 2a) in the current study: grunts (Haemulidae), cardinalfishes (Apogonidae), silversides (Atherinidae) and gobies (Gobiidae), with the bottom-most image showing fragments of branching finger coral (Poritidae). Scale bars, 1 mm. Fossil and modern reef images in b and images of assorted specimens and otolith SEM in c reproduced from ref. 22; PLoS, under a CC0 1.0 Creative Commons license.
