Bear humerus ID

[zeeceebee]

Hi,

 

I came across a listing for a humerus from Alaska described as Arctodus simus.

 

At 16" x 5", it still falls within the upper range of Ursus arctos from what I can find.  It's way short of the largest described Arctodus specimens (~25 inches), although I know there was also significant sexual dimorphism.  I can't see the entepicondylar foramen that differentiates Arctodus from modern bears in these photos.  Maybe it's filled in or broken off, or isn't always present?

 

Is anyone more knowledgeable able to confirm the ID?

 

Thanks!

[zeeceebee]

There's also an articulated femur/tibia listed, presumably from the same animal.  I can post those photos if they're helpful!