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Halved Nautilus Shell Cross Section with Spiral Gas Chambers Curved Septa and Siphuncle

Halved Nautilus Shell Cross Section with Spiral Gas Chambers Curved Septa and Siphuncle Education Model Realistic StarForge 3D Print STL File

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Cut cleanly through the middle, the halved nautilus shell exposes the spiral of gas chambers that winds down to a tiny central coil. Curved septa divide each chamber, and the beaded siphuncle tube threads through them like a string of pearls. The smooth outer wall flares into the wide open mouth of the shell. A classic natural spiral for a biology or marine science classroom, a talking point about buoyancy and growth, or an elegant piece for an ocean-themed display shelf.

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