What is an evolutionary trend in hoofed animals in which premolars become more like molars, giving the animals a continuous series of grinding teeth?

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The trend in hoofed animals in which premolars become more like molars, giving the animals a continuous series of grinding teeth is called molarization. This allowed them to better grind and digest tough plant material, which is a characteristic of herbivores. Carnassialization refers to the specialization of teeth in carnivores for shearing meat, while herbivorization refers to the adaptation of animals to a mainly herbivorous diet. Carnivorization and omnivorization are not relevant to this trend.

What Is an Evolutionary Trend in Hoofed Animals in Which