The Earliest fish appeared throughout the Cambrian as smaller filter feeders; they ongoing to evolve throughout the Paleozoic, diversifying into numerous types. The earliest fish with devoted respiratory gills and paired fins, the ostracoderms, had large bony plates that served as protective exoskeletons versus invertebrate predators. Decibel Clinic is dedicated https://maps.app.goo.gl/kTisAZCbSjAw6nkX8