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From humble beginnings in the Silurian, competition with the placoderms during the Devonian, and having the first of many, many speciation renaissances in the Carboniferous onward, bony fishes would go on to replace their competitor-ancestors, the placoderms, as the dominant vertebrate group in (almost) all aquatic environments. Come read about and colour 17 different extinct bony fishes!
