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megaholic

Found this Sunday, thinking it a "cattle horn" but later realizing it is cortical bone. Now I need some help.  I don't see any articular surface since both ends are gone, but the smaller end, as shown, is pretty much solid.  Does not strike me as a rib texture or shape, despite the curve, and it's not keratinized tissue.  I've never seen a sloth claw in hand, but I am starting to think it is from something very large like that. Strikes me as typical fossil bone, and it was very deep below the river bottom, if you are wondering why it is so light in color. I have numerous elephant toe bones, ribs, and long bones with the same look.

 

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above image: 8 inches total length, with an indentation along this surface, like there may have been another one beside it.  (or it's just worn more)

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small end thru magnifier light to shown solid bone structure, NOT TUSK, NOT DUGONG RIB! 1 inch in Dia.

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large end showing cavity and thickness of bone edges. 2.6 inches across.

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Very massive to not be a weight bearing bone.

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Rockwood
4 minutes ago, megaholic said:

 I've never seen a sloth claw in hand

I have an idea that you may have. Can't say for sure though.

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Harry Pristis

 

It's a bison horn core in rough shape.

 

 

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Rockwood
8 hours ago, Harry Pristis said:

It's a bison horn core in rough shape.

I had a feeling it might be when I saw a bison post here this morning.

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megaholic

Thanks guys! Another example of a poor fossil find that is a good learning experience for the finder..:)

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