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Photograph by Naish

"Angloposeidon" is the informal name given to a sauropod dinosaur from the Early Cretaceous Wessex Formation of the Isle of Wight in southern England.[1] It was a possible brachiosaurid but has not been formally named. Darren Naish, a notable vertebrate palaeontologist, has worked with the specimen and has recommended that this name only be used informally and that it not be published.[2] However, he published it himself in his book Tetrapod Zoology Book One from 2010.[3] The remains consist of a single cervical vertebra (MIWG.7306), which indicate it was a very large animal, 20 metres or greater in length.


  1. ^ Naish, Darren (2007-12-10). "World first: a peek inside "Angloposeidon"". Sauropod Vertebra Picture of the Week. 
  2. ^ Naish, Darren (15 Jul 2006). "Angloposeidon', the unreported story, part IV". Darren Naish: Tetrapod Zoology. 
  3. ^ Naish, Darren (7 Oct 2010). "Tetrapod Zoology Book One is here at last". Archived from the original on 2012-05-08. 


  • Naish, D., D.M. Martill, D. Cooper & K.A. Stevens 2004. Europe’s largest dinosaur? A giant brachiosaurid cervical vertebra from the Wessex Formation (Early Cretaceous) of southern England. Cretaceous Research 25: 787-795.[1]

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