Another unidentified jawbone (obverse and reverse). This is not a fish, but a land-dwelling animal. Any identification would be greatly appreciated.

Animal bone in general has a porous structure; flaky or shiny surface; white/milky or yellow in color; some brown spotting. Mammal bones have rounded edges and a thick cortex. A diagnostic element (teeth, etc.) can aid in identification. In this…

Rodent bones are distinguishable by teeth, vertebrae, and long bones with articular ends only. Based on teeth morphology, this example appears to be from the family Gerbillinae. Seems to be whole jaw, not fragment. Therefore, a very small specimen as…