There are some species of animals have totally vanished from the earth.they are no more to be seen anywhere. Such species are called extinct species. How Many Species Have Gone Extinct 1.) DINOSAURS 2.) DODO 3.) CAROLINA PARAKEET 4.) CASPIAN TIGER 5.) IRISH DEER 6.) QUAGGA 7.) Spix macow Dinosaurs are from the group of reptiles.they lived on earth