The mysterious fossil tooth whorl that we now know to be the lower, buzz-saw shaped jaw of the Permian-era shark, Helicoprion, perplexed Paleontologists for decades. But there's no confusion about what an amazing design it makes for a lovely trucker hat!

Graphic illustration by Aaron John Gregory beautifully embroidered locally in San Francisco on an navy/cream colored, Eco Trucker made from recycled materials by Econscious.  

Helicoprion Tooth Whorl Hat

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