Fig. 1. Principal components analysis of all teeth from the "Sue" theropod sample, Sankey (2008) tooth database (except Paronychodon and Richardoestesia), and Smith et al. (2005; Deinonychus, Dromaeosaurus, and Troodon). Principal components: (1) ([0.41 FABL]+[0.1 basal width]+[0.90 height]-[0.07 denticles/mm]) explained 77.01% of variance; (2) ([-0.03 FABL]+[0.02 basal width]+[0.09 height]+[1 denticles/mm]) explained 16.58% variance; and (3) ([0.82 FABL]+[0.40 basal width]-[0.41 height]+[0.05 denticles/mm]) 5.00% variance.

Published as part of Gates, Terry A., Zanno, Lindsay E. & Makovicky, Peter J., 2015, Theropod teeth from the upper Maastrichtian Hell Creek Formation "Sue" Quarry: New morphotypes and faunal comparisons, pp. 131-139 in Acta Palaeontologica Polonica 60 (1) on page 133, DOI: 10.4202/app.2012.0145, http://zenodo.org/record/13282350