Birgeria is really a genus of extinct fish from the Late Triassic interval, acknowledged for its big sizing and very long, slender human body. It was a carnivorous predator that roamed historical seas, hunting lesser fish and invertebrates. The Hallucigenia is undoubtedly an elongated, worm-like creature with spiney oppendages through https://bookmarksparkle.com/story18716738/the-definitive-guide-to-rare-fish