noun
stegosaur
Refers to any dinosaur of the infraorder Stegosauria, including well-known genera like Stegosaurus. Used in paleontological contexts.
剣竜は背中に大きな骨板を持っていた。
Stegosaurs had large bony plates on their backs.
ステゴサウルス specifically refers to the genus Stegosaurus, while 剣竜 is the broader group name.
From 剣 (sword) and 竜/龍 (dragon), referring to the bony plates and spikes that resemble swords.