The Earliest fish appeared through the Cambrian as modest filter feeders; they ongoing to evolve from the Paleozoic, diversifying into lots of varieties. The earliest fish with committed respiratory gills and paired fins, the ostracoderms, had hefty bony plates that served as protective exoskeletons towards invertebrate predators. The provision of https://maps.app.goo.gl/kTisAZCbSjAw6nkX8