这一类群，包括像剑龙和三角龙这样有名的名字，是恐龙被分成的两个分支之一。
This group, which includes such famous names as Stegosaurus and Triceratops, is one of the two clades into which the dinosaurs are divided.
剑角龙是属于肿头龙类食叶属之一，这种物种生存于7千万年前的地球。
Stegoceras was a member of the leaf-eating genus Pachycephalosauria that roamed the Earth around 70 million years ago.
剑角龙是属于肿头龙类食叶属之一，这种物种生存于7千万年前的地球。
Stegoceras was a member of the leaf-eating genus Pachycephalosauria that roamed the Earth around 70 million years ago.
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