Pachyrhinosaurus

Pachyrhinosaurus canadensis

  • Pronounced:  Pak-ee-Rhino-Saw-rus

  • Diet:  Herbivore (plant-eater)

  • Name Means:  "Thick Nose Lizard"

  • Length:  20 ft.(6 meters)

  • Height:  6 ft. (2 meters)

  • Weight:  2 tons (1,800 kilos)

  • Time:  Late Cretaceous

Fossil remains for this Dinosaur have been found in North America

Pachyrhinosaurus is an odd-looking member of the ceratopsian family of horned dinosaurs. It had a large lump on its nose instead of a sharp horn like most of its relatives. This large plant-eater grew to about the same size as its more famous relative, Triceratops. It would have lived in herds, moving about the Cretaceous land eating tough, low-growing plants. It had a sharp beak that would cut off leaves and lots of teeth in the back part of its mouth for chewing up tough plants.

This dinosaur has caused a great deal of debate among scientists because it is so different from other ceratopsians. While most feel that the nasal boss on Pachyrhinosaurus was used as a butting device during display, others have suggested it was the base for a huge keratin horn. It seems that these bosses were quite individualized and may have differed between genders. Also, the shape and size of the frills seems to have varied more among this genus than any other ceratopsian genus.

There weren't many specimens available for study until the late 1980?s. It was only then that scientist began to draw conclusions and raise more questions about this peculiar dinosaur.



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