The horned-faced dinosaur from Coahuila, Mexico found in 2008 has added significant information about the southern dinosaurs that lived on the coastal plains of Laradmidia during the companian stage of the Cretaceous period. With well sampled dinosaur faunas spanning from the North Slope of Alaska, all the way into the Coahuila region of Mexico, this time interval represents the best window into the world of dinosaurs that researchers can use to study these cretures. Cohuilaceratops has the longest brow horns of any of these well studied ceratopsians in the world, measuring 4 feet in length.