Articulated animal skeletons provide contextually secure samples that are potentially well-suited for modern radiocarbon dating. This was not the case in 1953 when a field school student pondered these partially articulated Bison antiquus limb bones found during deep excavations near the back wall of a rockshelter along the Balcones Escarpment of southwestern Texas. (Dee Ann Story (Suhm) went on to develop a stellar archeological career as professor of anthropology and the first director of TARL at the University of Texas at Austin.) See Kincaid Shelter to learn more.