Values of functional and topographic crown descriptors for the left first upper molar of each taxa.

CD: chewing direction value in degrees (with N the number of measured individuals); K: kurtosis of the crow slope distribution. O: average cusp lowest slope orientation value in degrees. H: hypsodonty index. Cusp interlocking is inferred from the observation of wear facets. Cusp interlocking is associated with discontinuous wear facets.