Palaeoniscus is an historic ray-finned fish through the Early Permian period, somewhere around 290 million several years in the past. Known for its strong ganoid scales and streamlined body, it signifies early actinopterygian evolution, the ancestor of Most up-to-date fish. The Hallucigenia is definitely an elongated, worm-like creature with spiney https://bookmarkpath.com/story18554600/freshwater-fish-an-overview