Thermogravimetry of dentin and enameloid of both shark species
showed three main regions (Fig. 13). First, the release of water
(up to 200 C), then the combustion of the organic matrix (200 to
500 C), and finally (>500 C) the release of CO2 from carbonated
apatite (LeGeros, 1981; Peters et al., 2000).