This site was uncovered from just one clue - a tiny rib bone in the lower righthand corner. The site extends further to the right, and most of the lines of bones extend further into the hill horizontally. In addition, it looks like each horizontal fin spine is roughly the same distance apart - increasing the likelihood that this is all from a single Dimetrodon.
Since the original discovery of this site on Tuesday, the area producing bones has roughly quadrupled in size. Today at the Amy site, Chris, Kathleen and Kathy uncovered 2 new full Dimetrodon fin spines, each of which is continuing into the face of the hill; two new partial fin spines that look like they will be complete when fully excavated; another tooth from the mystery animal that we theorize to be Dimetrodon loomisi, the "cheetah of Dimetrodons"; a small vertebra; and this:
Because they keep finding teeth with roots - indicating that they were lost after death and not while eating - the team suspects they may have a jaw somewhere in the Amy hill. It's exciting, but you have to reign it in sometimes - as Kathleen said, "It's a learning experience. You have to be patient. You're desperate to clear off all the dirt, so you can see the whole bone, but the dirt is often what is holding the bone together."
In one instance today, Chris found two lines of fin spine bones criss crossing each other, meaning the team won't be able to uncover the lower line of bones until they get it into the lab - which could be weeks, or even months away, depending on how soon they can return to work on the site. It can be maddening - but always exciting.
Neal, Shirley and Kim Beck dig into The Site That Wasn't. Towards the end of the day, Kim did locate some tiny Xenacanthus teeth, a tiny vertebra, a bunch of fish scales, a few little amphibian limb bones and skull fragments and shark cartilage.
Of course, Shirley insists that they did find something: "We found places where there aren't any fossils. That's valuable information. It's very useful for mapping the site as a whole."
David mixes the plaster to soak the burlap and spread over the jacket. It's a delicate art - you have to get each of the ingredianets just right. Too much salt - and it dries before you can get it on. Too little, and you're stuck with a soggy jacket.
They're adding fresh burlap, which is coated in plaster, and reinforcing that with...more plaster. According to David, "this is going to be the tiger tank of the plaster-jacket world." They may also add wooden boards for extra support, and they're currently debating the best way to get this 350-pound behemoth out of the site - which is at the bottom of the hill.
SHS junior Shelby Winter examines a possible Xenacanth coprolite.
Tomorrow, they're expecting lots more of the Dimetrodon to pop out of the Aimee hillside. Check back tomorrow to see how this site continues to come together.