Appendix S1. Abbreviations follow Leviton et al. (1985) except for: ASDM: Arizona Sonoran Desert Museum; GPZ: Gladys Porter Zoo; JRB: James R. Buskirk; KDA: Kenneth D. Angielczyk; MSE: Museum of Systematics and Ecology (University of California, Santa Barbara); UCMP: University of California Museum of Paleontology; UMZC University Museum of Zoology (University of Cambridge); WCS: Wildlife Conservation Society (Bronx Zoo).

Appendix S2. Specimens used and GenBank accession numbers for nuclear (nucDNA) and mitochondrial (mtDNA) sequence datasets.

Table S1. Results of multivariate regressions of partial warp and uniform component scores (shape) against the natural logarithm of centroid size.

Table S2. Parameters estimated for preferred models of plastron shape evolution.

EVO_1118_sm_SuppMat.doc110KSupporting info item

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.