Figure 1 : Scanned locations on dugong tusks.

From: Elemental classification of the tusks of dugong (Dugong dugong) by HH-XRF analysis and comparison with other species

Figure 1

(A) Schematic of tusk crown and root in study 1. (B) Three different tusk layers in study 2. (C) Small tusks and (D) large tusks in study 3.