Fig. 3 in Theropod teeth from the upper Maastrichtian Hell Creek Formation "Sue" Quarry: New morphotypes and faunal comparisons

Fig. 3. Principal components analysis of Richardoestesia teeth from Hell Creek and Lance formations (circles) and dromaeosaurid tooth FMNH PR 2899 from the Sue quarry (cross). Analysis contained variables height, FABL, and denticles/mm. PC 1 ([0.28 FABL]+[0.94 height]-[0.19 denticles/mm]) explained 76.36% of the variance. PC 2 ([0.03 FABL]+[0.18 height]+[0.98 denticles/mm]) explained 22.51% of the variance. PC 3 ([0.96 FABL]-[0.28 height]+[0.02 denticles/mm]) explained 1.13% of the variance.