Friday mystery object #41

It’s hard to believe that it’s a year ago today that I started this blog – how time flies! The mystery object didn’t start until four months in and I strongly feel that it provides the backbone of the blog. So here is my forty-first mystery object – I hope you enjoy trying to work out what it is (whatever it might be, it looks pretty vicious):

As usual put your suggestions and questions below and I will do my best to answer (without giving it away). The answer will be posted on Monday.

Good luck!

25 thoughts on “Friday mystery object #41

      • My initial thought was the same as Cromacrox’s (sorry Henry). But, it’s leaning to the left, so perhaps it’s Pristis labouri, which is soon to be red-listed.

        After discussions with the wife, we both think the blob on the right hand side is important to its identification. After that I give up.

    • Pez dispensers weren’t designed until opposable thumbs evolved in the Paleogene – the Jurassic pez were eaten straight from the packet without the use of a dispenser.

  1. Could it be part of a Aristonectes or some other aquatic dinosaur? The end seems like a ball joint used possibly used in the hind section?

  2. Hmmm … I am adopting a totally mechanical approach to this – the serrations are, I imagine, where muscles are attached. Those muscles are probably very powerful and the whole thing is flipper shaped. The joint at the end is ball-shaped but the bone is solid. So the muscles aren’t used for internal movement within the flipper itself but it’s very stiff and can be turned as a whole. So I’m going with the back end of a dolphin.

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