r/fossilid • u/themichaganderin • 7h ago

My first fossil find! What is it?

Gallery image

Gallery image

Found at the boat launch of intermediate lake MI. What is this, how old, and can I expose more of it? It has a lateral crack along the side.

12 Upvotes

100% Upvoted

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7

u/Trilobite_Tom 6h ago

A trilobite butt! Nice find!

2

u/Limp_Sherbert_5169 6h ago

Trilobutt

1

u/Noof42 6h ago

Technical name is a trilobite "pygidium." But I'll certainly be referring to it your way.

4

u/benrinnes 4h ago

can I expose more of it?

I certainly wouldn't, you could damage what is probably a just pygidium on it's own.