[Flick Lives]

No, “black” was never a racial classification, so that literature doesn’t exist.

OK. Let me rephrase the question in your terminology. Can you point me toward racial classification definitions in the scientific literature?

[Boogieman]

“Can you point me toward racial classification definitions in the scientific literature?”

Well, there are varying definitions depending on what classification system you are talking about. Here is a good summary about the different kinds of models and their limitations:

http://anthro.palomar.edu/vary/vary_2.htm