Pachyrhinosaurus
Dinosaur Fossil
Class Sauropsida,
Superorder Dinosauria, Order Ornithischia, Suborder Cerapoda, Family Ceratopsidae
Geological
Time: Upper Cretaceous (75 mya)
Size: Dinosaur
bone is 70 mm in length (2 13/16”)
Fossil Site:
Judith River Group, Fergus County, Montana
Fossil Code:
PFV331
Price: Sold
 Description:
This is a fine, solid caudal vertebra from the ceratopsid dinosaur
Pachyrhinosaurus.
Pachyrhinosaurus
(meaning "thick-nosed reptile") is a genus of ceratopsid
dinosaur from the Late  Cretaceous
period of North America. The first examples were discovered by Charles
M. Sternberg in Alberta, Canada, in 1946, and named in 1950. Twelve
partial skulls and a large assortment of fossils have been found
in total in Alberta and Alaska. A great number were not available
for study until the 1980s, resulting in a relatively recent increase
of interest in the Pachyrhinosaurus. Instead of horns, the skull
bears massive, flattened bosses, the largest being over the nose.
These were probably used in butting and shoving matches, as in musk
oxen. A single pair of horns grew from the frill and extended upwards.
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