在1856年,約瑟夫·萊迪收到由Ferdinand V. Hayden發現於朱迪思河組的破碎化石。萊迪將這群北美洲化石命名為:恐齒龍、古蜴甲龍、糙齒龍、以及傷齒龍,但唯有傷齒龍是目前仍繼續使用的名稱[1]。模式種是奇異糙齒龍(T. mirabilis),屬名在古希臘文意為「粗糙的牙齒」,意指其中一顆牙齒的內側表面粗糙;種名在拉丁文意為「奇异的」。
在1942年,理查·史旺·魯爾( Richard Swann Lull)與尼爾達·萊特(Nelda Wright)所公佈的具影響力鴨嘴龍類專題論文中,糙齒龍的正模標本被認為是典型的鴨嘴龍類牙齒,除了粗糙的齒緣外,但他們認為並不適合拿來據以使用[8]。除了關於歷史的討論以外,糙齒龍此後不再被使用,並被認為是疑名[9][10][11]。
^ 1.01.11.2Leidy, J. (1856). Notice of remains of extinct reptiles and fishes, discovered by Dr. F. V. Hayden in the Bad Lands of the Judith River, Nebraska Territories. Proceedings of the Academy of Natural Science Philadelphia 8:72-73.
^ 2.02.12.2Creisler, B.S. (2006). Deciphering duckbills. in: K. Carpenter (ed.), Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Indiana University Press: Bloomington and Indianapolis, 185-210. ISBN 0-253-34817-X
^Hatcher, J.B., Marsh, O.C. and Lull, R.S. (1907). The Ceratopsia. Government Printing Office, Washington, D.C., 300 pp. ISBN 0405127138
^ 4.04.1Sternberg, C.M. (1936). The systematic position of Trachodon. Journal of Paleontology 10(7):652-655.
^Leidy, J. (1868). Remarks on a jaw fragment of Megalosaurus. Proceedings of the Academy of Natural Science Philadelphia 20:197-200.
^Hatcher, J.B. (1902). The genus and species of the Trachodontidae (Hadrosauridae, Claosauridae) Marsh. Annals of the Carnegie Museum 14(1):377-386.
^Gilmore, C.W. (1915). On the genus Trachodon. Science 41:658-660.
^ 8.08.1Lull, R.S., and Wright, N.E. (1942). Hadrosaurian Dinosaurs of North America. Geological Society of America Special Paper 40:1-242.
^Coombs, Jr., W.P. (1988). The status of the dinosaurian genus Diclonius and the taxonomic utility of hadrosaurian teeth. Journal of Paleontology 62:812-818.
^ 10.010.110.210.310.410.5Weishampel, D.B., and Horner, J.R. (1990). Hadrosauridae. In: Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.). The Dinosauria. University of California Press:Berkeley, 534-561. ISBN 0-520-24209-2
^ 11.011.111.211.311.411.5Horner, J.R., Weishampel, D.B., and Forster, C.A. (2004). Hadrosauridae. In: Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.). The Dinosauria (second edition). University of California Press:Berkeley, 438-463. ISBN 0-520-06727-4
^ 12.012.112.2Lambe, L.M. (1902). On Vertebrata of the mid-Cretaceous of the Northwest Territory. 2. New genera and species from the Belly River Series (mid-Cretaceous). Contributions to Canadian Paleontology 3:25-81.
^Osborn, Henry Fairfield. Distinctive characters of the mid-Cretaceous fauna. 1. New genera and species from the Belly River Series (mid-Cretaceous). Contributions to Canadian Paleontology. 1902, 3: 1–21.
^Riabinin, A.N. (1925). A mounted skeleton of the gigantic reptile Trachodon amurense, nov. sp. Izvest. Geol. Kom. 44(1):1-12. [Russian]
^Riabinin, A.N. (1930). Mandschurosaurus amurensis, nov. gen., nov. sp., a hadrosaurian dinoasur from the Upper Cretaceous of Amur River. Mémoir II, Société Paléontologique de Russie. [Russian]
^Cope, E.D. (1871). Supplement to the synopsis of the extinct Batrachia and Reptilia of North America. American Philosophical Society, Proceedings 12(86):41-52.
^Lydekker, R. (1888). Note on a new Wealden iguanodont and other dinosaurs. Quarterly Journal of the Geological Society of London 44:46-61.
^Marsh, O.C. (1897). Vertebrate fossils of the Denver Basin. U.S. Geological Survey, Monthly 27:473-527.
^Lambe, L.M. (1914). On a new genus and species of carnivorous dinosaur from the Belly River Formation of Alberta, with a description of the skull of Stephanosaurus marginatus from the same horizon. Ottawa Naturalist 28:13-20.
^Parks, W.A. (1923). Corythosaurus intermedius, a new species of trachodont dinosaur. University of Toronto Studies, Geological Series. 15:1-57
^ 21.021.1C. W. Gilmore. 1924. On the genus Stephanosaurus, with a description of the type specimen of Lambeosaurus lambei, Parks. Canada Department of Mines Geological Survey Bulletin (Geological Series) 38(43):29-48.