| This is the reverse side of the specimen seen in the previous image. It is a chunk of petrified Black Locust wood, Robinia alexanderi, from the late Miocene Dove Spring Formation of the Ricardo Group, collected in Last Chance Canyon long before that area was assimilated by the expanded borders of Red Rock Canyon State Park just a few years ago; today, Last Chance Canyon lies within the boundaries of Red Rock Canyon State Park--fossil collecting there is obviously forbidden, except by special permit from the state park system, a permit issued solely to qualified, trained scientists with a degree from an accredited university whose research can be verified by independent investigators. The specimen is 103mm across, in actual dimension. |