The Earliest fish appeared through the Cambrian as little filter feeders; they continued to evolve through the Paleozoic, diversifying into several kinds. The earliest fish with devoted respiratory gills and paired fins, the ostracoderms, experienced large bony plates that served as protective exoskeletons towards invertebrate predators. Online shopping lets you https://maps.app.goo.gl/kTisAZCbSjAw6nkX8