Helicoprion Tooth Whorl - embroidered hat birding This one is depicted chasing

This one is depicted chasing down a common chunky

or going to a metal show

The Dimetrodon lived in the Early Permian era

Featuring illustrations by Aaron John Gregory and crafted by Cuppafog

Helicoprion Tooth Whorl - embroidered hat birding This one is depicted chasingEmbroidered Helicoprion Tooth Whorl graphic on a high quality, Snapback trucker cap. Four different color ways to choose from! 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!