What’s in the Box: You’re ripped, Eurypterid!

Just back from Tucson, this little fellow is an extinct critter called a eurypterid. It’s one of the acquisitions from this year’s enormous Tucson Gem & Mineral Show, where we join other national and international museums annually to show off our specimens, make new purchases, and talk shop.


The long tail spike has led some to call the eurypterid a “sea scorpion,” though we don’t know whether it was venomous. This specimen has one of two distinctive paddle-like arms remaining, and the frilly appendages sprouting off the head are its walking feet. These creatures lived in Silurian seas over 415 million years ago.

This specimen is headed to a box for now, but we should be putting it out on display before long! Anyone have any good ideas for a nice nickname?

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