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Triceratops horridus
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Brown, Caleb Marshall, Boyd, Clint A. & Russell, Anthony P., 2011, A new basal ornithopod dinosaur (Frenchman Formation, Saskatchewan, Canada), and implications for late Maastrichtian ornithischian diversity in North America, Zoological Journal of the Linnean Society 163 (4), pp. 1157-1198
: 1186
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1186 |
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Triceratops horridus
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Nesbitt, Sterling J., 2011, The Early Evolution Of Archosaurs: Relationships And The Origin Of Major Clades, Bulletin of the American Museum of Natural History 2011 (352), pp. 1-292
: 209
|
209 |
|
Triceratops horridus
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|
|
Kenneth Carpenter & D. Bruce Young, 2002, Late Cretaceous dinosaurs from the Denver Basin, Colorado, Rocky Mountain Geology 37, pp. 237-254
: 247
|
247 |
