Evolution of high tooth replacement rates in theropod dinosaurs
(A) Natural log of tooth replacement rates plotted on a time-calibrated phylogeny  of dinosaurs. Grey numbers indicate tooth replacement rates in days. (B) Natural log of body mass versus tooth replacement rate in dinosaurs. Blue polygon indicates carnivorous taxa, yellow polygon indicates herbivorous taxa. Data for Majungasaurus, Ceratosaurus, and Allosaurus are from this paper; data from Dicraeosaurus are from Schwarz et al. ; data from Giraffatitan are from Kosch et al. ; data from other sauropodomorphs are from D’Emic et al. ; data for other taxa are from Erickson . ‘Titanosauria indet.” refers to the titanosaur premaxilla described by Coria and Chiappe  and analyzed by D’Emic et al. . Silhouettes by S. Hartman and M. Wedel from www.phylopic.org.