Sierraceratops is an extinct genus of chasmosaurine ceratopsian dinosaur that lived in New Mexico during the Late Cretaceous.
Description[]
It is differentiated from a short, robust and mediolaterally compressed posorbital horns, a flattened medial ridge at the posterior of the pterygoid, a jugal with anterior flanges that are pronounced, an epijugal horncore that is long and pyramid-shaped, a D-sjaped cross section in the median parietal bar and a squamosal that has a pointed tip and low episquamosal ossifications.
Classification[]
Phylogenetic analyses place Sierraceratops as sister to Bravoceratops and Coahuilaceratops as part of a clade endemic to southwest USA and Mexico. This taxon indicates Laramidian endemism and diversity, with endemic clades and distinct community structures in the Hall Lake Formation.
Gallery[]
References[]
https://www.sciencedirect.com/science/article/abs/pii/S0195667121002822