副櫛龍的模式標本(編號ROM708)包含一個頭顱骨與部分骨骸,缺少膝蓋以下的後肢與大部分的尾巴。該標本是在1920年,由一個多倫多大學的野外隊伍在加拿大亞伯達省紅鹿河畔的桑德河附近所發現[9]。這個標本的發現地點目前為恐龍公園層,年代為上白堊紀的坎帕階;而該化石被威廉·帕克斯命名為沃克氏副櫛龍(P. walkeri),以皇家安大略博物館的董事會主席Byron Edmund Walker爵士為名[9]。儘管在亞伯達省發現了副櫛龍的第一個標本,但牠們的化石在該省仍然少見[17]。除了模式標本以外,在恐龍公園組另發現了一個部分顱骨[18]、以及三個缺少顱骨的標本,可能屬於副櫛龍[19]。在蒙大拿州的地獄溪組,發現了疑似沃克氏副櫛龍的化石,該地層的年代為馬斯垂克階晚期[20][21]。這些未經處理過的蒙大拿州化石,是蘇利文、威廉森在1999年重新研究副櫛龍時發現的[10]。
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^ 6.06.16.2(英文)Richard Swann Lull and Wright, Nelda E. 1942. Hadrosaurian Dinosaurs of North America, Geological Society of America Special Paper 40, 209-213.
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^ 8.08.18.28.38.48.5(英文)Horner, John R.; Weishampel, David B.; and Forster, Catherine A. Hadrosauridae. Weishampel, David B.; Osmólska, Halszka; and Dodson, Peter (eds.) (编). The Dinosauria 2nd. Berkeley: University of California Press. 2004: 438-463. ISBN 0-520-24209-2.引文使用过时参数coauthors (帮助)
^ 9.09.19.29.39.49.5(英文)Parks, William A. Parasaurolophus walkeri, a new genus and species of crested trachodont dinosaur. University of Toronto Studies, Geology Series. 1922, 13: 1–32.
^ 10.010.110.210.310.410.510.610.710.8(英文)Sullivan, Robert M.; and Williamson, Thomas E. A new skull of Parasaurolophus (Dinosauria: Hadrosauridae) from the Kirtland Formation of New Mexico and a revision of the genus. New Mexico Museum of Natural History and Science Bulletin, 15. Albuqueque, New Mexico: New Mexico Museum of Natural History and Science. 1999: 1–52.引文使用过时参数coauthors (帮助)
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^(英文)Currie, Phillip J; and Russell, Dale A. 2005. "Geographic and stratigraphic distribution of dinosaur remains" in: Currie, Phillip J., and Koppelhus, Eva (eds.) Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed, p. 553.
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^ 21.021.121.2(英文)Weishampel, David B.; Barrett, Paul M.; Coria, Rodolfo A.; Le Loeuff, Jean; Xu Xing; Zhao Xijin; Sahni, Ashok; Gomani, Elizabeth, M.P.; and Noto, Christopher R. (2004). "Dinosaur Distribution", in The Dinosauria (2nd), pp. 517–606.
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^(英文)Eberth, David A. 2005. "The geology", in Dinosaur Provincial Park, pp. 54-82.
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^ 28.028.1Tanke, Darren H.; and Brett-Surman, Michael K. Evidence of hatchling and nestling-size hadrosaurs (Reptilia: Ornithischia) from Dinosaur Provincial Park (Dinosaur Park Formation: Campanian), Alberta, Canada. Tanke, Darren H.; and Carpenter, Kenneth (编). Mesozoic Vertebrate Life. Bloomington and Indianapolis, Indiana: Indiana University Press. 2001: 206–218. ISBN 0-253-33907-3.引文使用过时参数coauthors (帮助)
^ 29.029.1Lehman, T. M., 2001, Late Cretaceous dinosaur provinciality: In: Mesozoic Vertebrate Life, edited by Tanke, D. H., and Carpenter, K., Indiana University Press, pp. 310–328.
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