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From taxonomic name Marginocephalia + -an.
Etymology from Wiktionary, CC BY-SA 4.0.
marginocephalian
Today it means: Of or relating to the †Marginocephalia, a clade of ornithischian dinosaurs. Full definition →
Today it means: Of or relating to the †Marginocephalia, a clade of ornithischian dinosaurs. Full definition →
From taxonomic name Marginocephalia + -an.
Etymology from Wiktionary, CC BY-SA 4.0.