Pachycephalosaurus

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Pachycephalosaurus
Temporal range: Upper Cretaceous
Pachycephalosaurus skull.JPG
Skull of Pachycephalosaurus at the Oxford University Museum of Natural History.
Scientific classification
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Pachycephalosaurus

Species

P. wyomingensis (Gilmore, 1931) (type)

Pachycephalosaurus was a genus of dinosaur which lived during the last five million years of the Upper Cretaceous. It lived in what is now North America.[1]

This member of the Pachycephalosaurid family is known from a single skull and a few thick skull roofs. From this it is estimated that its length was about 4.5 to 5 metres long (about 15 feet).

Pachycephalosaurus was a herbivore. It lived on a mixed diet of leaves, seeds, and fruit. The sharp, serrated teeth would have been very effective for shredding plants.[2]

Skeletal mount of Pachycephalosaurus

References[change | change source]

  1. Giffin, Emily B; Gabriel, Diane L; Johnson Rolf E. 1988. A new Pachycephalosaurid: Hell Creek Formation of Montana. Journal of Vertebrate Paleontology. 7 (4): 398–407.
  2. The dinosauria (2nd ed.). Berkeley, Calif.: University of California Press. 2004. ISBN 978-0-520-94143-4. OCLC 801843269.