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MrR

Jaw? II. Just when you thought it was safe...

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MrR

And so I return with another question about a particular, probably cetacean, bone. In my last adventure, we ascertained that a piece of bone, with cylindrical resemblances, was from a rib. With how little curve it had along it's length, I suspect it was from a large creature.


I also have another interestingly shaped/textured bone fossil from the same general, Miocene, area in Bakersfield. As you can see, the glued specimen is a bit over 150mm in length, and sits about 70mm wide(tall?). One side is very flat along the length of the piece. Since it has what appear to be termination points, I figure that a general ID for body position might be possible. This is where I again go to thinking a possible jaw part. Like perhaps the rear portion of a mysticete lower jaw? I know, there I go again. As I said, the texture is not smooth like the rib I was given. It's got a lot of bumps and shallow crags around the curved portions. Thanks ahead of time for any input on possible ID.  Cheers.

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Fossildude19

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Auspex

Just using general morphology to ID this may be a tall order. On the flat side, the exposed trabeculae show that the bone has been split, and that we cannot tell what shape it may originally have been.

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caldigger

Hey Brian, I have a whole box of STH bones you are more than welcome to rummage through and attempt to make into a jaw. :ighappy:  

There may actually be some unidentified jaw sections in there.

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MrR

Thanks, Doren. Well, OK, let me at 'em. ;)

 

 

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Boesse

?Mysticeti indet. Not possible to ID based on anything other than 1) it's mammalian bone and 2) it's big.

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MrR

Thank you for sharing your expertise. Mammal chunkosaurus it is. Cheers.

 

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