Mammal bone in SE Texas

[johnnyvaldez7.jv]

I found this bone in Southeast Texas.  I don't know what it belongs to but it's pretty heavy and it definitely seems to be fossilized. I'm hoping someone can tell me what species it was a part of and how old it might be?

[caterpillar]

Ulna

[Rockwood]

This does appear to be from the proximal end of an ulna. The distinction between fossil and modern bone here in Texas is proving to be a challenge for me. This looks like a good candidate for a tap test though. Tap it lightly with something like a spoon or butter knife. If the tone it makes is high pitched it would indicate a fully mineralized bone. A lower pitch like wood being struck would indicate it's being modern. All fossils need not be fully mineralized however, and bones which are not considered true fossils can mineralize to some extent under certain conditions.

I think mammal fossils in most of the state would likely be Pleistocene in age.

[johnnyvaldez7.jv]

I'm getting a high pitch sound when striking it. Based on its size what could it be from?

[Brandy Cole]

@johnnyvaldez7.jv You may want to try comparing it to a horse distal ulna.  I haven't found any personally before, but it could be a place to start in terms of general size and shape.  

 

That could still be consistent with Pleistocene deposits that I think would be likely in your area.

 

 

[TyrannosaurusRex]

I’m going to agree with horse. Nice find. 

[Harry Pristis]

I think it's bovid, likely from a cow, not horse . . . there is no interosseus space indicated in the images.  

For comparison:

 

[BobWill]

Since the angle of the anconaeus process, seen best in image 4, is a little obtuse for bos and maybe even equus maybe we should also consider cervus.