Friday mystery object #395

I have an interesting mystery object from the Dead Zoo for you this Friday:

View from the wide end

Any idea what this might be? Cryptic answers from those in the know would be appreciated!

12 thoughts on “Friday mystery object #395

  1. Natalia's avatar

    If it is what I think it is, it certainly didn’t fall out of some large lumbering mammal due to poor dental hygiene. But, one wouldn’t find this inter-tidally, it isn’t your every day beach treasure.

  2. katedmonson's avatar

    Well… That completely eliminates my idea. And here I had thought I had it down. To 2.5 miles.
    Rats! (not a guess) back to the books.

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