Never give up hope! It might be a real species after all! Othniel Charles Marsh once found a sauropod skeleton wanting a skull, found a Diplodocus skull a couple of miles away, and announced, "here's my new dinosaur!" Elmer Riggs said no, Othniel had the body of one known species and the skull of another. In 2015, a paper came out arguing that Marsh's discovery (the body portion) was in fact a distinct species. What is this beloved dinosaur, which also, according to a stone-age cook, is a great roast for dinner because "you have your meal, and there's enough left over for sandwiches?"
brontosaurus