supersaur

supersaur

(ˈsuːpəˌsɔː) n (Palaeontology) a very large dinosaur

su•per•saur

(ˈsu pərˌsɔr)
n. a huge sauropod dinosaur of the genus Supersaurus, of W North America, that reached a length of about 130 ft. (40 m). [1985–90; < New Latin; see super-, -saur]