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 dinosau