Figure 7 in The first record of fossilized soft parts in ossified tendons and implications for the understanding of tendon mineralization

Figure 7. FTIR spectra of studied tendon samples of ornithischian dinosaurs: A, powdered samples of a fossilized tendon of Homalocephale calathocercos; B, powdered samples of the extract obtained after demineralization of H. calathocercos tendon; C, powdered samples of a fossilized tendon of Edmontosaurus regalis; D, powdered samples of the extract obtained after demineralization of E. regalis tendon; E, powdered sample of demineralized tendon of Meleagris gallopavo, note that phosphate (PO)3– and carbonate (CO)2– signals are masked by the high input of organic residues; F, amide I region of 4 3 samples extract after demineralization of H. calathocercos as well as (G) E. regalis and (H) M. gallopavo ossified tendons.