High-crowned teeth that are well suited for grazing are found in some rodents, rabbits and...

High-crowned teeth that are well suited for grazing are found in some rodents, rabbits and hares, most eventoed hoofed animals, horses (which are perissodactyls), and elephants. According to the evolutionary tree in Figure are high-crowned teeth a synapomorphy or a product of convergent evolution?

Figure Phylogeny of the mammals From Murphy et al. (2001).