APPENDICES
The following data files associated with this study are available in the Dryad Digital Repository https://doi.org/10.5061/dryad.7wm37pvr8
Supplementary Table S1. Centroid size and RW scores of overall specimens (1048 specimens, un-mirrored). Supplied in zipped file.
Supplementary Table S2. Centroid size and RW scores of straight shelled specimens (722 specimens, laterally bended specimens excluded). Supplied in zipped file.
Supplementary Table S3. Centroid size and RW scores of overall specimens (1048 specimens, partly mirrored). Supplied in zipped file.
Supplementary Table S4. Centroid size and RW scores of bent specimens (326 bent specimens, partly mirrored). Supplied in zipped file.