Drawings of such blades were found in prehistoric caves.
It is believed that this is a prehistoric cave in the laterite rock.
The businessman in Chicago who objects to his wife's expenditures onjewelry should visit a prehistoric cave, he thought.
Narrow limestone gorge contains series of prehistoric caves occupied by men and animals some 70,000 years ago.
Trollhola, a prehistoric cave, is located on the island of Askrova.
The town has two prehistoric caves of an exceptional nature.
France got its first stunning view this weekend of a grand, prehistoric cave, decorated by people who lived as many as 20,000 years ago.
There is a prehistoric cave under the castle.
Five bison are particularly expressive because they have their heads turned, showing both eyes, instead of the more common, flat profile found in prehistoric caves.
Its remnants may remain, however, as an archeological artifact, like a drawing on the wall of a prehistoric cave.