I believe "LUCA" fits the description: the last universal common ancestor from which all organisms now living on Earth have a common descent. https://en.wikipe

I believe "LUCA" fits the description: the last universal common ancestor from which all organisms now living on Earth have a common descent. https://en.wikipedia.org/wiki/Last_universal_common_ancestor https://en.wikipedia.org/wiki/Last_universal_common_ancestor