在1989年,大衛·威顯穆沛(David B. Weishampel)與菲利浦·比約克(Philip R. Bjork )將這些化石命名為拉科塔禽龍(I. lakotaensis)[1]。某些研究人員提出異議,認為拉科塔禽龍比貝尼薩爾禽龍(I. bernissartensis)更為原始,並可能是眾神花園龍的近親[2]。大衛·諾曼(David Norman)則認為拉科塔禽龍是貝尼薩爾禽龍的一個異名[3]。
在2008年,葛瑞格利·保羅(Gregory S. Paul)重新研究禽龍的各種,將拉科塔禽龍獨立為新屬,拉科塔達科塔齒龍(D. lakotaensis)[4]。
^(英文)Weishampel, David B.; Philip R. Bjork. The first indisputable remains of Iguanodon (Ornithischia: Ornithopoda) from North America: Iguanodon lakotaensis, sp. nov.. Journal of Vertebrate Paleontology. 1989, 9 (1): 56–66.引文使用过时参数coauthors (帮助)
^(英文)Brill, Kathleen and Kenneth Carpenter. 2007. "A description of a new ornithopod from the Lytle Member of the Purgatoire Formation (Lower Cretaceous) and a reassessment of the skull of Camptosaurus." Horns and Beaks, 49–67.
^(英文)Norman, David B. On Asian ornithopods (Dinosauria, Ornithischia). 3. A new species of iguanodontid dinosaur. Zoological Journal of the Linnean Society. January 1998, 122 (1–2): 291–348. doi:10.1006/zjls.1997.0122.
^(英文)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.