I recently watched Indiana Jones and The Kingdom of The Crystal Skull. I heard the name of a conquistador named Orellana and thought they were saying Oryana. Later I remembered about her in the first chapter of Chariots of The Gods. Here's what the book says.
What does legend say about the mysterious city of Tiahuabaco?
It tells of a golden spaceship that came from the stars; in it came a woman, whose name was Oryana, to fufill the task of becoming the Great Mother of the earth. Oryana had only four fingers, which were webbed. Great Mother Oryana gave birth to 70 earth children, then she returned to the stars.
As I was writing the above part a thought occurred to me. What if it wasn't a literal birth but Oryana was a genetic engineer and she made the children in a lab.
That could be considered birth in a way. Having 70 children would put a severe strain on reproductive organs; that is if this race is anything like Human. There a lot of talk about altering primitive Human genetics with the Anunnaki, so why not here? Maybe Oryana was one of them.