Looking for some old school fashion? You can't go wrong with a trilobite keychain!

These specimens measure ~1.5" long.

They can be shipped worldwide. 

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Trilobites were an extremely adaptive marine arthropod that first evolved roughly 521 million years ago and rapidly spread across the globe. They diversified into approximately 17,000 species and were one of history's most successful animals - existing for over 270 million years before extinction!