Cetiosauriscus (/siːθiːuːsɒrɪskʌs/ meaning "whale-lizard-like" i.e. "Cetiosaurus-like") is a genus of sauropod dinosaur. It was perhaps a diplodocid, a relative of Diplodocus, and lived in the Callovian (Middle to Late Jurassic Period) of England (about 165 to 161 million years ago [mya]). Cetiosauriscus was a quadrupedal, herbivorous, saurischian. It was named by Friedrich von Huene in 1927, the species name being C. leedsi. Later it was shown that C. leedsi was not a Cetiosauriscus species, so, in 1993, Alan J. Charig sent a petition to the ICZN to designate C. stewarti as the type species. The remains include a series of vertebra, a hind leg, a possible whiplash tail, a partial sacrum, and a front leg. Cetiosauriscus has, over time, been classified in Cardiodontinae within Cetiosauridae, Diplodocidae, and Mamenchisauridae. It lived alongside Eustreptospondylus, Sarcolestes, Callovosaurus, Lexovisaurus, and possibly Megalosaurus, and Cetiosaurus. (see more...)