what do trilobites eat?

Answer 1

Trilobites became extinct about 250 million years ago at the end of the Permian Period along with about 90% of life on Earth in the biggest mass extinction known, so they don't eat anything anymore.

Up to the late Devonian Period they were very diverse, and likely there were trilobites that specialized in most every type of marine food source. Some definitely burrowed in the mud of the sea bed, likely eating anything they found there. Others would have been active predators and hunted other trilobites, worms, etc. They were similar to crabs in some ways, and I think it's pretty likely they were at least as diverse in habits.

Answer 2

When trilobites first appeared in the Cambrian Period some 570 million years ago they ate anything and everything they wanted to eat, since they were the first invertebrate with a hard exoskeleton. By the time of the Permian Extinction 320 million years ago they ate anything they could, since there were many invertebrates with hard exoskeletons. Living for 250 million years is very good for a species.

Answer 3

Trilobites don't eat anything - they are extinct and the only ones we know of are now fossils in rock.
When they were living (there were several species), some were scavengers, some ate plankton, and its believed that one species developed a symbiotic relationship with sulfur-eating bacteria from which they derived food.

Answer 4

They eat rocks. Since the rocks have minimal nutrients, they all became extinct.