There once were many varieties of horned dinos like this (collectively called the ceratopsids), the most famous of which was Triceratops. They and their kin roamed the Cretaceous plains (grass had appeared by then) in great herds. Horn ornamentation and size was the only thing that distinguished Chasmosaurs from many of the horned faces. This sculpture is 2 and a half ft.
Mother and Buck
Now we see that this dino is in fact a mother. The males of her kind brandished far more imposing head gear, and would have little tolerance for a ornery buck like this one. The yearling's base is designed to interlock with Mom's, but can be cast serparately. Should we keep them apart though?