elasmosaurus, plesiosaur from the late cretaceous period, one of the longest necked animals to have ever lived, 3d science

ancient animal animals aquatic banner carnivore creature cretaceous dino dinosaur elasmosaurus empty era ever evolution extinct have history illustration jurassic large late lived lizard longest longnecked marine monster nature necked ocean one palaeontologist palaeontology park period platyurus plesiosaur prehistoric primeval primitive rendering reptile science sea serpent space species underwater vertebrate