Temporal range: Early Cretaceous
Cetiosaurus conybeari Melville, 1849
The taxonomic status of Pelorosaurus is as a result very problematic. Technically, Cetiosaurus brevis is its type species. The position of Pelorosaurus is further undermined by the fact that several researchers hold that the genus is a nomen dubium ('doubtful name').
Pelorosaurus was one of the first dinosaurs described, and the naming procedures were not so well-developed at the time. Its life-style is assumed to be similar to other brachiosaurs, eating from the higher branches of tall conifer trees.
- Mantell G.A. 1850. "On the Pelorosaurus: an undescribed gigantic terrestrial reptile, whose remains are associated with those of the Iguanodon and other saurians in the strata of Tilgate Forest, in Sussex." Philosophical Transactions of the Royal Society of London, 140: 379-390.
- Taylor M.P. and Naish D. 2007. "An unusual new neosauropod dinosaur from the Lower Cretaceous Hastings Beds Group of East Sussex, England." Palaeontology, 50(6): 1547-1564. doi: 10.1111/j.1475-4983.2007.00728.x
- Upchurch, P.; Martin J.; and Taylor M. (2009). "Case 3472: Cetiosaurus Owen, 1841 (Dinosauria, Sauropoda): proposed conservation of usage by designation of Cetiosaurus oxoniensis Phillips, 1871 as the type species" (pdf). Bulletin of Zoological Nomenclature 66 (1): 51–55. http://www.miketaylor.org.uk/dino/pubs/upchurch-et-al-2009/UpchurchEtAl2009-BZN-case-3472-cetiosaurus-type-species-oxoniensis.pdf.