Palaeoniscus is definitely an historical ray-finned fish within the Early Permian period, about 290 million years ago. Recognized for its sturdy ganoid scales and streamlined system, it represents early actinopterygian evolution, the ancestor of Most recent fish. The Hallucigenia is really an elongated, worm-like creature with spiney oppendages all over https://bookmark-master.com/story18621122/what-does-flowerhorn-fish-mean