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Sea Urchin Aristotle Lantern Jaw Apparatus with Five Converging Teeth Pyramids and Rotulae

Sea Urchin Aristotle Lantern Jaw Apparatus with Five Converging Teeth Pyramids and Rotulae Education Model Realistic StarForge 3D Print STL File

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Sea urchin Aristotle's lantern, the five-part jaw apparatus, sculpted as tapered bony plates converging to a point. Each smooth plate narrows toward the tip. Five long tooth pyramids fold together along the sides, while knobby rotulae and arched braces crown the top where the muscles once attached. Fine seams separate each plate so students can trace how the jaws open and close. An unusual marine biology teaching model for a classroom, a natural history shelf or anyone fascinated by animal skeletons.

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