I'm not up-to-date on my research these days but it's only within the last 10K years or so (maybe even more recent) where there's been one extant human subspecies.
Or the history really began once the other Humans were no more ?
Just passing thoughts
It occurred to me that, if the Abrahamic God exists, and the origin of Adam is anything more than a mere metaphor, God must have had to make a decision at some point. "There!", He/She/It said as the last vital chromosome fell into place in generation Aleph-1, "All this work is finally done. Whew! I could use some rest." Or something.
But maybe it's all metaphor (except for the God existing part). Maybe the Garden of Eden was Us (big-us, all the hominids) co-existing without technology, and the rise of flint-knapping/agriculture/representational art/whatever was the "eating of the fruit and gaining of knowledge".
Or any other variation you like, as long as you're not intentionally bound from thinking by a literalist view of the Torah's Book of Genesis. In which case, I have bad news: "Adam" wasn't even named that in the early writings, presumably closer to God's word. So, your translation is a bad start for you.
So, maybe the "Twelve Tribes of Israel" are themselves metaphoric for the whole set of hominin branches. Maybe "Ham" was Paranthropus. Accepting that "seven" in the bible sometimes implies "an important big number", maybe "seven" generations later (give or take a few 100) Paranthropus died out completely. Poor Ham. He was just checking to make sure Dad didn't oversleep.
Or maybe, there is no God, and it's just fun to play with myths, which are culturally powerful.
Citation needed. What was he named in the early writings?
He seems to have been "Adamah", or "dirt" - which is not far removed from "Adam", I'll grant.
But "Eve" is the one that really changed. She was named by Adam "Ishah", feminine version of "ish"/man. Or maybe "Chivah", a variation on the Hebrew word for life. I'm not clear. Then the Greeks made her "Zoe".... Fast forward a few hundred years, and a couple languages, and it becomes "Eve".
An early computer translating program took "out of sight, out of mind" to Russian and back, and returned "invisible insanity". A fairly reasonable translation, in some respects.
My point is really this: Biblical literalists who only read it in their native tongue are making indefensible claims about meaning.
Not a great example; the green women are specifically shown to exert pheromonal control over alien males.
Are there any now living people with mt-dna from other hominids?
Having a minority non-autosomal genotype could be an issue as there might be recurring "compatibility problems", given that the autosomal dna would mainly evolve to work with the majority mtdna and ydna.
> There is considerably less Neanderthal ancestry on the X-chromosome compared to the autosomal chromosomes, which similarly suggests that admixture with modern humans was primarily the result of mating between modern human females and Neanderthal males.
https://en.wikipedia.org/wiki/Neanderthal_genetics#Parentage
Usually those would be called hominids, not humans.