Cuttin' and Diggin'

Finally started on Weston's Eagle project (building some storage benches for an orphanage in town.) We have been collecting material donations from home improvement stores over the last few weeks (Thank you Home Depot!) and finally got to cutting on Saturday. Not much time left (3 weeks to his 18th birthday) -- cutting it close yuh think? We didn't get much cutting done before Weston had to leave for another state band festival.
While Weston and company were earning another "Superior with Distinction" at Glendale Community College, Bridget and I made a visit to one of my company's job sites in Phoenix which happened to be an ancient Native American burial site (don't know how old.) The Archeology Department has finished digging / extracting / studying the items they were interested in (the remains of a couple hundred bodies) and released the site for development. So Bridget and I went out with a shovel, pick and dirt sifter to see what remnants we might find. We were hoping to discover the ultimate find -- a skull -- but no such luck. Our dusty hour only produced a pile of pottery fragments and one BONE. Actually several bones, but most were obviously from a horse or cow (ball & socket joints too big to be human.) But there was this one (see photo) found away from the others. I don't think it's human either (maybe a recent dog or cat.) Any of you medical folks (or vets) out there recognize it? Maybe while grading the site, more interesting things will surface.