ID of Bone from China

[Crazyhen]

This bone measures 32cm in length.  It is from Chinabut the locality is not known.  It seems to be a leg bone.  Any idea if it belongs to mammal or dinosaur?

[Troodon]

All I can say its not Dinosaurian 

[KimTexan]

I believe it is mammal femur. I’m looking at the 3rd and 4th pic from the bottom. The right end appears to be the epicondyle with the patellar grove.

Here is a cow femur and tibia I found a couple months ago for comparison. 

The fibula is broken off of the tibia in my example. You can see the femur is bulky and bulbous on the ends and the tibia is more flat

[Harry Pristis]

The Chinese bone is a humerus.  It reminds me of a perissodactyl humerus, perhaps from a rhino.

 

@kimTexan has presented a cow humerus and radius (the radius is reversed, front to back).

 

 

[KimTexan]

Oops @Harry Pristis is totally right. I absentmindedly picked up the wrong bone to take a pic of it. I remember finding the femur, but forgot I’d found the humus too.

Here is the femur on the right and humus on the left. The humorous has been outside in the sun.

These are my hundred +/- year old cow bones found in a creek with much of the skeleton. 

[Crazyhen]

Thanks!  So this bone is of a more recent age.

[SULLY]

Still a very cool looking specimen