Recently, Indian scientists discovered a 152 million-year-old fossil of sea fish - an extinct marine reptile.
British scientists found a 165-million-year-old fossil skeleton of an animal in the Jurassic family of the plesiosaur, which is huge in size and many features never seen before.
Fish lizards are a giant dolphin reptile that lives in the sea 248 million years ago and went extinct 25 million years ago.
Paleontologists have discovered a creature believed to be a long-lost relative of the Loch Ness monster in Scotland.