What level of organisms would a quaternary consumer eat?

A quaternary consumer, which is typically a top predator in an ecosystem, primarily feeds on tertiary consumers. These organisms are often carnivores that have few or no natural predators themselves. In some ecosystems, quaternary consumers may also consume herbivores (secondary consumers) if they are opportunistic feeders, but their main prey usually comes from the tertiary level. Examples of quaternary consumers include large predators like eagles or sharks.