mar·gi·no·ce·phal·i·an (mär′jə-nō-sə-fălē-ən)
Share:
Tweet n. Any of various herbivorous ornithiscian dinosaurs of the group Marginocephalia of the Cretaceous Period, characterized by a bony shelf or frill at the back of the skull and including the ceratopsians and the pachycephalosaurians. [From New Latin Marginocephalia, group name : Latin margō, margin-, margin; see MARGIN + Greek kephalē, head; see CEPHALIC.] mar′gi·no·ce·phali·an adj. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.