Gideon Mantell named the type species, Pelorosaurus conybeari, in 1850. Unlike Richard Owen, who mistakenly identified Cetiosaurus, another sauropod dinosaur, as a gigantic, sea-going crocodile-like reptile, Mantell identified Pelorosaurus as a dinosaur that lived on land. For that, Pelorosaurus was the first sauropod ever to have been identified as a dinosaur.
Pelorosaurus appears to have been a brachiosaurid, similar to the related genera Brachiosaurus, Lusotitan, and Abydosaurus. Friedrich von Huene understood the possible link with its American cousin Brachiosaurus, so he placed in the Brachiosauridae . Pelorosaurus belonged to the Brachiosauridae.
Pelorosaurus conybeari, Mantell, 1850 (Melville, 1849, (originally Cetiosaurus conybeari))
Article by Brian Tinnon 2/15/12