OrnithischiaChasmosaurinaeTriceratops

Triceratops prorsus

Triceratops prorsus skeletal reconstruction, left lateral view, reconstructed length ~5.5 m.
Scale bar = 1 meter
Taxon
Triceratops prorsus Marsh, 1890
Reconstructed length
~5.5 m (18 feet)
View
Left lateral
Drawing
© Scott Hartman
Drawn
2008, revised 2012
Clade
  1. Ornithischia
  2. Neornithischia
  3. Marginocephalia
  4. Ceratopsia
  5. Neoceratopsia
  6. Ceratopsidae
  7. Chasmosaurinae

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The quintessential giant horned dinosaur from the latest Cretaceous of western North America, about 66 million years ago. Triceratops prorsus is the geologically younger of the two Triceratops species, and is most easily distinguished by having a longer nasal horn than T. horridus.

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