Data S1

Zip file containing raw data and relevant sources, including: (1) Sources.xlsx – sources for skull reconstructions, as well as phylogenetic placements and age ranges of taxa not included in Singh et al.5, and node age constraints based on Matamales-Andreu et al.70 (2) synapsidappended.tps – raw geometric morphometric landmark data. (3) synapsidslider.txt – slider file for sliding semilandmarks along curves. (4) functionalraw.xlsx – raw functional morphometric measurements and functional scores used for PCA and clustering analyses. (5) adjacency.xlsx – adjacency matrices used for anatomical network analysis. (6) imputedfunctiondata.csv – phylogenetically imputed functional data. (7) shapePC.csv – PC scores from 2D GM. (8) functionPC.csv – PC scores from PCA of imputed functional morphometric data. (9) FFGs.csv – FFG designations for all sampled taxa from consensus clustering results.