Was there lesbian love during the Stone Age?

From Wikipedia: The Stone Age is a broad prehistoric time period during which humans widely used stone for toolmaking. The period encompasses the first widespread use of technology in human evolution and the spread of humanity from the savannas of East Africa to the rest of the world. It ends with the development of agriculture, the domestication of certain animals and the smelting of copper ore to produce metal.

Lesbian is a term most widely used in the English language to describe sexual and romantic desire between females. The word may be used as a noun, to refer to women who identify themselves or who may be identified by others as having the primary attribute of female homosexuality.

Although female homosexuality has appeared in many cultures throughout time, not until recently has lesbian described a group of people. In the late 19th century sexologists published their observations on same-sex desire and behavior, designating lesbians in Western culture as a unique entity. As a result, women who became aware of their new medical status formed underground subcultures in Europe and North America. Further broadening of the term occurred in the 1970s, influenced by second wave feminism. Historians since have re-examined relationships between women in history, and have questioned what qualifies a woman or a relationship as lesbian.

http://en.wikipedia.org/wiki/Stone_age

I know all answers are probably highly speculative, but I’m curious about what you think.