Styracosaurus
-described by
Lambe, 1913 (Dodson, 1996). This is the first complete skull
of a Canadian horned dinosaur (Dodson, 1996).
Styracosaurus albertensis, meaning "Alberta spike
lizard" has by far the largest skull of the Judith River
Formation Centrosaurines. Including the spikes, its skull is
1.84m in length (Dodson, 1996). It has three pairs of long
spikes that radiate out the back of the parietal, and the
nasal horn core is erect and tall. It lacks postorbital
horns, however, there is a depression in the position where
an orbital horn core would have been expected. Its frill
contains two fenestrae (Dodson, 1996).
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