Late Triassic Mystery Fossil #3

Man I am busy (but aren't we all?), family, two jobs, research, upcoming holidays, and now studying for the GRE (I last took it 11 years ago!). Not too sure what I am thinking at times. Anyhow, I have not done one of these for awhile so here is Late Triassic mystery fossil #3. It comes from the Chinle Formation and is shown here in dorsal view. Hopefully I will post on this fossil and its relatives soon. I also know that there are a few new Triassic papers coming down the pipe soon, so there will be lot to cover in the next couple of months....but for now it is back to the quantitative section study guide.