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.
“Anatomy and Taxonomic Status of the Chasmosaurine Ceratopsid Nedoceratops hatcheri from the Upper Cretaceous Lance Formation of Wyoming, U.S.A.“ Abstract Background – The validity of Nedoceratops hatcheri, a chasmosaurine ceratopsi... Read Post
American Study Suggests Torosaurus is Actually an Elderly Triceratops The horned dinosaurs, known as Ceratopsians were some of the very last kinds of dinosaur on Earth. These horned, long-frilled prehistoric... 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