Cupstone
Cupstones, also called anvil stones and nutting stones, are lithic artifacts having a roughly discoidal surface resulting from human action. The hemispherical indentation itself is an important element of paleoart, known as a "cupule".
Cupstones, also called anvil stones and nutting stones, are lithic artifacts having a roughly discoidal surface resulting from human action. The hemispherical indentation itself is an important element of paleoart, known as a "cupule".
Cupstones, also called anvil stones and nutting stones, are lithic artifacts having a roughly discoidal surface resulting from human action. The hemispherical indentation itself is an important element of paleoart, known as a "cupule".
Source: Wikipedia "Cupstone" · CC BY-SA 4.0
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