Butler, Richard J.; Galton, Peter M. (2008). «The 'dermal armour' of the ornithopod dinosaur Hypsilophodon from the Wealden (Early Cretaceous: Barremian) of the Isle of Wight: a reappraisal». Cretaceous Research29 (4): 636-642. doi:10.1016/j.cretres.2008.02.002.
Galton, Peter M. (1977). «The ornithopod dinosaur Dryosaurus and a Laurasia-Gondwanaland connection in the Upper Jurassic». Nature268: 230-232. doi:10.1038/268230a0.
Weishampel, David B.; Jianu, Coralia-Maria; Csiki, Z.; Norman, David B. (2003). «Osteology and phylogeny of Zalmoxes (n.g.), an unusual euornithopod dinosaur from the latest Cretaceous of Romania». Journal of Systematic Palaeontology1 (2): 1-56. doi:10.1017/S1477201903001032.
Varricchio, David J.; Martin, Anthony J.; Katsura, Yoshihiro (2007). «First trace and body fossil evidence of a burrowing, denning dinosaur». Proceedings of the Royal Society B: Biological Sciences. online preprint: 1361. doi:10.1098/rspb.2006.0443.
Butler, Richard J.; Smith, Roger M.H.; Norman, David B. (2007). «A primitive ornithischian dinosaur from the Late Triassic of South Africa, and the early evolution and diversification of Ornithischia». Proceedings of the Royal Society B: Biological Sciences274: 1361. doi:10.1098/rspb.2007.0367.
Butler, Richard J.; Upchurch, Paul; Norman, David B. (2008). «The phylogeny of the ornithischian dinosaurs». Journal of Systematic Palaeontology6 (1): 1-40. doi:10.1017/S1477201907002271.
