There are occurrences of it in cave drawings of the Mesolithic period.
在中石器时代的洞穴图画中也出现过这种情况。
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All those individuals lived in the Mesolithic Period, also known as the Middle Stone Age Period.
这些人都生活在中石器时代。
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This is the next step. 6 In the early 1980s, 87 graves of men, women and children from the Mesolithic period were being excavated on Sweden's southern coast.
In archaeology, mesolithic (Greek: μεσος, mesos "middle"; λιθος, lithos "stone") is the culture between paleolithic and neolithic. The term "Epipaleolithic" is often used for areas outside northern Europe, but was also the preferred synonym used by French archaeologists until the 1960s.