Earlier tapinocephalians were carnivorous or omnivorous. One such group was Titanosuchidae, which consisted of long-tailed predators that hunted herbivorous therapsids. Later tapinocephalians were herbivorous.
Earlier tapinocephalians were either carnivores or omnivores; one example was the Titanosuchidae, a group of long-tailed predators that preyed on herbivorous therapsids. Later tapinocephalians changed their diet to primarily consist of plants.