n.huge ceratopsian dinosaur having three horns and the neck heavily armored with a very solid frill

New Information on the Skull of Triceratops
The Munich specimen of Triceratops with a revision of the genus
Species Resolution in Triceratops: Cladistic and Morphometric Approaches
A Reevaluation of the Manus Structure in Triceratops (Ceratopsia: Ceratopsidae)
A functional analysis of jaw mechanics in the dinosaur Triceratops
Torosaurus Marsh, 1891, is Triceratops Marsh, 1889 (Ceratopsidae: Chasmosaurinae): synonymy through ontogeny
The thermoregulatory functions of the Triceratops frill and horns: heat flow measured with oxygen isotopes
The cranial morphology and systematics of {\it Triceratops\/}, with a preliminary analysis of Ceratopsian phylogeny
Taylor & Francis Online :: New information on the skull of Triceratops - Journal of Vertebrate Paleontology - Volume 16, Issue 2
Taylor & Francis Online :: Species resolution in Triceratops: cladistic and morphometric approaches - Journal of Vertebrate Paleonto...