When Christians believe that Adam and Eve were the first humans, does that include genus' of other human types?

Let's see, you've got your creationists who probably don't believe in any other 'kinds' of humans and you've got your liberal Xtians who probably don't believe in the Bible itself. I don't think either of them are going to be exactly flustered by your Q. No offense, I just think it's going to fall on deaf ears.