Birgeria is usually a genus of extinct fish with the Late Triassic period of time, acknowledged for its substantial measurement and prolonged, slender body. It had been a carnivorous predator that roamed historic seas, hunting scaled-down fish and invertebrates. The Hallucigenia is definitely an elongated, worm-like creature with spiney oppendages https://getsocialnetwork.com/story4055775/exotic-fish-for-dummies