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Morphology and ontogeny of the cornual sinuses in chasmosaurine dinosaurs (Ornithischia: Ceratopsidae)

Published online by Cambridge University Press:  11 August 2017

Andrew A. Farke
Andrew A. Farke*
Affiliation:
Department of Anatomical Sciences, Stony Brook University, Stony Brook, New York 11794,
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Extract

Ceratopsids, horned herbivorous ornithischians from the Cretaceous of North America, are unique among dinosaurs in the form and expression of their cranial ornamentation. All ceratopsid genera possess a bony parieto-squamosal frill that projects over the neck region and some degree of development of nasal and orbital horns. These horns vary in form and location, from low bosses (e.g., Pachyrhinosaurus Sternberg, 1950) to long, conical horns (e.g., Triceratops Marsh, 1889 postorbital horns). Internal structural changes occurred along with these extreme external modifications of the skull (Forster, 1996).

Type
Paleontolgical Notes
Information
Journal of Paleontology , Volume 80 , Issue 4 , July 2006 , pp. 780 - 785
Copyright
Copyright © The Paleontological Society 

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