After Forster, 1996
†Triceratops Marsh, 1889b
†Bison
†Diceratops
†Triceratops prorsus Marsh, 1890
†Triceratops horridus
†Triceratops brevicornus]
†Triceratops horridus Marsh, 1889a
†Triceratops flabellatus
†Triceratops serratus
†Triceratops elatus
†Triceratops calicornis
†Triceratops obtusus]
Reference(s):
- Forster, C. A., 1996: Species resolution in Triceratops: Cladistic and morphometric approaches.
–Journal of Vertebrate Paleontology: Vol. 16, #2, pp. 259-270