What were chondrichthyes eat?

Answer 1

Chondrichthyes, which include sharks, rays, and skates, have varied diets depending on their species. Some are carnivorous, preying on fish, crustaceans, and marine mammals, while others, like certain rays, may feed on mollusks and small invertebrates. A few species, such as the whale shark, are filter feeders that consume plankton. Overall, their diets reflect their adaptations to different ecological niches in marine environments.