Fossils from South Texas

[GigEm2002]

I have two fossils I was given by a family member when I was a kid that I believe were “surface finds” finds from South Texas.  A local museum curator said they were from some kind of a mammal.  Can anyone tell me what these are from and what part of the animal they are?  One is a socket joint and the other is triangular in cross section.

[Innocentx]

Nice bones. Not much left for ID, though.

Perhaps someone here is familiar enough to know.

[GigEm2002]

Oh and to be more specific I think these were from the Coastal Bend area around Corpus Christi- I think the area has a large number of Pleistocene mammal fossils and this may be why the fellow at the museum thought the fossils came from a mammal. 

[darrow]

I think the second one is part of a scapula but from what I can't say.

Darrow 

[jpc]

I think the second one is a distal radius, based on the shape of the articular surface.  

[Scylla]

The first looks like part of a turtle shell.

[GigEm2002]

I didn’t think of this being a forearm bone.  My wife the biologist thinks the second one looked a little like the knee joint of a lower leg bone of an herbivore like a deer.

Edited December 19, 2018 by GigEm2002

[GigEm2002]

The white one does look like part of a turtle shell.  Apparently giant tortoise fossils are common in that area. Makes sense.