Bowdler, Neil 2012. BBC News Science & Environment. Triceratops and Torosaurus dinosaurs 'two species, not one'[1]
doi.org
dx.doi.org
Scannella J. and Horner J.R. 2010. "Torosaurus Marsh, 1891, is Triceratops Marsh, 1889 (Ceratopsidae: Chasmosaurinae): synonymy through ontogeny ." Journal of Vertebrate Paleontology, 30(4): 1157 - 1168. doi:10.1080/02724634.2010.483632
nih.gov
ncbi.nlm.nih.gov
Longrich N.R & Field D.J. 2012. Torosaurus is not Triceratops: ontogeny in chasmosaurine ceratopsids as a case study in dinosaur taxonomy. PLoS ONE7 (2): e32623. [2]
plos.org
journals.plos.org
Farke A.A. 2011. Anatomy and taxonomic status of the chasmosaurine ceratopsid Nedoceratops hatcheri from the Upper Cretaceous Lance Formation of Wyoming, U.S.A. PLoS ONE6 (1): e16196. [3]