Variously known as cupstones, "anvil stones," "pitted cobbles" and "nutting stones," among other names, these roughly discoidal or amorphous groundstone artifacts are among the most common lithic remains of Native American culture, especially in the Midwest, in Early Archaic contexts.
网络释义
1、杯石
... 康宁汉 Cunningham, Sir Alexander 杯石 cupstone 库尔提乌斯 Curtius, Ernst ...