Mineralized bones

[GTK96]

The whale vertebrae and rib section are IDd correctly to the extent of my knowledge, and they're just for show because they came from the same place, but I was wondering what type of bone the whiter one is. I'm pretty sure it's a joint/hinge, but I have no guess as to what...
Thanks guys

 

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[arnofarrell]

Part of a pelvis bone. You can see where the femur goes into the socket on the bottom left pic. Doesn't look old, might be deer.

 

[GTK96]

Part of a pelvis bone. You can see where the femur goes into the socket on the bottom left pic. Doesn't look old, might be deer.

I think it is, it was found in the same layer as extinct Gastropod shell casts, and it makes that flinty/glassy when you rub it...maybe it is new, I'm indifferent but I think it might be older than the last thousand or two...thanks for the comment

 

[Ninjafossils]

It may be part of a pelvis. But to me, it sounds more like scapula. Doesn't look mineralized, so <4000 years old