在2010年,大衛·諾曼(David B. Norman)將道氏禽龍建立為獨立屬,重骨龍(Barilium)。屬名意為「重的腸骨」。大衛·諾曼將一節背椎、左腸骨選定為選模標本[4]。同年稍晚,肯尼思·卡彭特(Kenneth Carpenter)等人將同一批化石進行敘述、命名,建立為獨立屬,圓骨龍(Torilion)。圓骨龍目前被視為是重骨龍的次客觀同物異名[5]。
^ 1.01.1Norman, David B. Basal Iguanodontia. Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.) (编). The Dinosauria 2nd. Berkeley: University of California Press. 2004: 413–437. ISBN 0-520-24209-2.
^Paul, Gregory S. A revised taxonomy of the iguanodont dinosaur genera and species. Cretaceous Research. 2008, 29 (2): 192–216. doi:10.1016/j.cretres.2007.04.009.
^Lydekker, Richard. Note on a new Wealden iguanodont and other dinosaurs. Quarterly Journal of the Geological Society of London. 1888, 44: 46–61. doi:10.1144/GSL.JGS.1888.044.01-04.08.
^ 6.06.1Blows, W. T. A review of Lower and middle Cretaceous dinosaurs from England. Lucas, S.G., Kirkland, J.I., and Estep, J.W. (eds.) (编). Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History and Science Bulletin, 14. New Mexico Museum of Natural History and Science. 1997: 29–38.