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(a) Principal Components Analysis (PCA) of all complete, identifiable teeth; (b) morphospace occupied by teeth of individual Recent lamniforms compared to that occupied by the Maastrichtian assemblage (grey shading) and Danian assemblage (dotted outline); morphospace occupied by teeth of Danian (c) and Maastrichtian (d) lamniforms compared to that occupied by Recent lamniforms (grey shading).
