Fig. 1

Raw diversity trends for the three clades of dinosaurs in this study plotted against outcrop exposure area. The plot shows the apparent correlation of this sampling proxy with diversity curves for these clades of dinosaurs (Ceratopsidae, Hadrosauridae, and Tyrannosauridae). Tyrannosauridae silhouette by Jack Mayer Wood (CC BY 3.0 license: https://creativecommons.org/licenses/by/3.0/ CC BY 3.0); Hadrosauridae silhouette by Pete Buchholz (under CC BY-SA 3.0 license: https://creativecommons.org/licenses/by-sa/3.0/); and Ceratopsidae silhouette by Mariana Ruiz (modified by T. Michael Keesey) under the Public Domain Mark 1.0