Phylogenetic signal in tooth wear? A question that can be answered—By testing

Do all teeth show the same wear traces when processing the same diet, or do the wear traces of the same diet differ between species, maybe due to differences in tooth morphology or chewing physiology? Questions like this one can be tested using appropriate biological and statistical methods. Without such tests, claiming that a certain proxy of tooth wear represents a “taxon‐free” signal remains a hypothesis.[Image: see text]