Torosaurus Is Not Triceratops : Ontogeny in Chasmosaurine Ceratopsids as a Case Study in Dinosaur Taxonomy. 2012. N.R. Longrich and D. J. Field. PLoS ONE 7(2): e32623. From PLoS One e32623: It has been proposed that the genera Triceratops and Torosaurus are in synonymous, with specimens identified as Torosaurus representing the adult form of Triceratops. The hypothesis of synonymy makes three testable predictions: 1) the species in question should have similar geographic and stratigraphic distributions, 2) specimens assigned to Torosaurus should be more mature than those assigned to Triceratops, and 3) intermediates should exist that combine features of Triceratops and Torosaurus.
A new chasmosaurine from northern Laramidia expands frill disparity in ceratopsid dinosaursAuthors:Ryan et alAbstract:A new taxon of chasmosaurine ceratopsid demonstrates unexpected disparity in parietosquamosal frill shape among ce... Read Post
Mojoceratops, International Chasmosaurine of Mystery Nick Longrich describes a new chasmosaurine ceratopsid in the new issue of the Journal of Paleontology: Mojoceratops. It's name means exactly what you think it does, and Nick thou... Read Post
Is Torosaurus Triceratops? Geometric Morphometric Evidence of Late Maastrichtian Ceratopsid Dinosaurs Authors: Maiorino et al Abstract: Background Recent assessments of morphological changes in the frill during ontogeny hypothesized... Read Post