What Did Trilobites Eat?

Generally speaking, early trilobites seem to have hunted down aquatic worms and eaten them alive. It's been theorized that a few other species evolved to eat plankton or algae—with some making use of a filter-feeding mechanism.

What was the trilobites diet?

Diet of the Trilobite

Some foraged on diatoms and plankton via filter feeding. Others hunted small fish and worms. They also believe some species had herbivorous feeding habits and subsided primarily on algae and aquatic vegetation.

What were trilobites prey?

A Bumastoid trilobite crawling on the benthos. ... Nautiloids were probably important predators of trilobites. Trilobites certainly were important prey for larger creatures. At first these were large invertebrates, such as predatory worms, nautiloids, sea scorpions (eurypterids), crustaceans, and perhaps Anomalocaridids.