I found this while out for a walk in the desert today. The two hollow protrusions resemble possibly horns. The odd thing is that they are behind the brain cavity.
View from the front
View from the side
View from the back
View from the bottom, the "horns" are to the right
Thier is a nickle sized cylindrical peice of very hard bone or enamel inside what could be a now deformed mouth. The skull appears to be very old.