In 2004 he and colleagues described a giant Isle of Wight sauropod dinosaur that appears closely related to the North American brachiosaurid "Sauroposeidon" and in 2006 he and David Martill published a revision of the South American crested pterosaurs "Tupuxuara" and "Thalassodromeus".
In 2004 he and colleagues described a giant Isle of Wight sauropod dinosaur that appears closely related to the North American brachiosaurid "Sauroposeidon". In 2005 he coauthored the description of the new Cretaceous turtle "Araripemys arturi", and in 2006 he and David Martill published a revision of the South American crested pterosaurs "Tupuxuara" and "Thalassodromeus".