P. J. Currie, W. Langston, and D. H. Tanke. 2008. A new species of Pachyrhinosaurus (Dinosauria, Ceratopsidae) from the Upper Cretaceous of Alberta, Canada. in A New Horned Dinosaur from an Upper Cretaceous Bone Bed in Alberta
Bibliographie (1)
P. J. Currie, W. Langston, and D. H. Tanke. 2008. A new species of Pachyrhinosaurus (Dinosauria, Ceratopsidae) from the Upper Cretaceous of Alberta, Canada. in A New Horned Dinosaur from an Upper Cretaceous Bone Bed in Alberta