This assumes that you are a creationist. Not being one, and since there are no fossils found tying back Cromagnon to the neanderthal family tree, I propose that the aliens who were performing genetic manipulation on the existing hominids of the time, produced male and female of the same mutation as equals.
In the biblical story, it is said that God created Eve from one of Adam's ribs, not in his right ribs specifically. This story is symbolic rather than literal, representing the idea that woman is created as equal and complementary to man.
When a Man Needs a Woman was created in 1968.
A Man Needs a Woman was created in 1968.
Woman Like a Man was created in 2003.
Another Man's Woman was created in 1975.
Rich Man's Woman was created in 1975.
The Woman in Me - Needs the Man in You - was created in 1994.
Every Man Has a Woman was created in 1980.
One Woman Man was created on 1989-02-28.
A Woman a Man Walked By was created in 2020-01.
Man Stroke Woman was created on 2005-11-20.
The Woman That Dreamed About a Man was created on 2010-01-21.