트라코돈

트라코돈(Trachodon)은 "거친 이빨"(rough tooth)을 의미하며 미국 몬태나주 백악기 후세에 번성하였던 오리너구리류 공룡의 속이다.Leidy, 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(March 25): 72-73.

트라코돈은 덩치가 큰 이족보행/사족보행 초식동물일 것으로 추정한다.Horner, 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. 

 종 
이 속에 속하는 수많은 종이 있으며 대부분 제1차 세계 대전 이전에 식별되었다. 처음 트라코돈종으로 명명된 것들은 아래와 같다.

모식종:
T. mirabilis Leidy, 1856

그 밖의 종:
 T. amurense Riabinin, 1925Riabinin, A.N. (1925). A mounted skeleton of the gigantic reptile Trachodon amurense, nov. sp. Izvest. Geol. Kom. 44(1):1-12. [Russian](based on IVP AS collection, a partial skeleton from Upper Cretaceous rocks of the Amur River banks of Heilongjiang in northeast China, amended to T. amurensis and now the type species of Mandschurosaurus)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]
 T. cantabrigiensis (nomen dubium) Lydekker, 1888Lydekker, R. (1888). Note on a new Wealden iguanodont and other dinosaurs. Quarterly Journal of the Geological Society of London 44:46-61. (based on BMNH R.496, a dentary tooth from the late Albian-age Lower Cretaceous Cambridge Greensand, Cambridgeshire, England, regarded as a dubious early hadrosaurid)Weishampel, 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. 
 T. longiceps (nomen dubium) Marsh, 1897Marsh, O.C. (1897). Vertebrate fossils of the Denver Basin. U.S. Geological Survey, Monthly 27:473-527. (based on YPM 616, a large right dentary with teeth from the late Maastrichtian-age Upper Cretaceous Lance Formation of Wyoming, U.S., later assigned to Anatotitan)
 T. marginatus (nomen dubium) Lambe, 1902Lambe, 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. (based on NMC 419, disassociated postcranial material; later made the type species of the genus Stephanosaurus marginatusLambe, 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. and then referred to Kritosaurus as Kritosaurus marginatus, which is not supported by later reviews.)
 T. (Pteropelyx) selwyni (nomen dubium) Lambe, 1902 (based on NMC 290, a dentary with teeth, from the Dinosaur Park Formation of Alberta; too fragmentary to assign beyond Hadrosauridae)

 각주 

분류:백악기 후기 북아메리카의 공룡
분류:의문명
분류:1856년 기재된 화석 분류군
분류:조지프 레이디가 명명한 분류군
분류:미국의 공룡