Figure 4 : The feasibility of species classification by the elemental composition of tusks and teeth.

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

Figure 4

Canconical discriminant function plots of the elemental composition of teeth and tusks of different species. P = phosphorus, S = sulfur, Ca = calcium, Mn = manganese, Fe = iron, Zn = zinc, Zr = zirconium, W = tungsten.