marginocephalian

Of or relating to the Marginocephalia, a clade of ornithischian dinosaurs.

Any member of the Marginocephalia.

Thus, they were able to corroborate previous hypotheses of overrepresentation of nodosaurid ankylosaurs and hadrosaurid ornithopods in marine sediments, whilst they also found that marginocephalians, ankylosaurid ankylosaurs, sauropods, and supposedly herbivorous theropods were positively associated with terrestrial paleoenvironments.