Hypothetically speaking ......what if?
Adam was Homo erectus,then bang thousands of years later Eve was made with the likeness of a Neanderthal and their offspring were born either Neanderthal or Cro-Magnon (Homo sapiens sapiens) coz anthrolpological concensus is that the two were contemporaries.

Would explain our ante-deluvian ancestors with Noah and his family starting the global family tree afresh purely 'Homo sapien' about 30,000 years ago.

I am not saying it is so but couldn't it be possible that God did it that way?