The only definitely identified specimen was a large right humerus from Cuckfield, West Sussex, near where Gideon Mantell found the first remains of Iguanodon (although this is now referred to as Mantellidon). This specimen was proportionally elongated, 0-shaped in cross-section and fairly straight, with proximally expanded ends and a well developed delto-pectoral crest. The only definite specimen from the island is a shaft of a left humerus found at Sandown, but this has no real defining features. Several assumed Pelorosaurus dorsal and caudal vertebrae from Brook bay were later referred to Iguanodon.

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Pelorosaurus – Wikipedia, the free encyclopedia

MANTELL, G. 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

NAISH, D. and MARTILL, D. M. 2001d. Saurischian dinosaurs 1: sauropods. In MARTILL, D. M. and NAISH, D (eds). Dinosaurs of the Isle of Wight. The Palaeontological Association. Field Guide to Fossils 10. 185-.241.

UPCHURCH, P., MANNION, P. D. & BARRETT, P. M. 2011. Sauropod dinosaurs. In BATTEN, D. J. (ed.) English Wealden Fossils. The Palaeontological Association (London), pp. 476-525.