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TABLE 1. Component loadings for the Principal Components Analysis of skull shape in Spinosaurus and other reptiles shown in Figure 2.

  PC1 PC2 PC3 PC4 PC5
Skull height 0.010 0.005 0.035 0.979 -0.202
Skull width 0.002 -0.006 0.003 0.202 0.979
Naris to anterior margin 0.015 0.002 0.999 -0.035 0.004
Naris to dorsal margin 0.970 -0.242 -0.014 -0.009 -0.001
Orbit to dorsal margin 0.242 0.970 -0.006 -0.006 0.007