“…With regard to understanding the structure of mammalian dentitions, this work has provided crucial insight into the role of genes in partitioning the tooth row into distinct modules. While many studies have focused on tooth size in human and non-human primates [ 22 , 23 , 24 , 25 , 26 ], some efforts have centered around non-metric crown variants, shape variables, and cusp configuration [ 17 , 27 , 28 , 29 , 30 , 31 , 32 ].…”