I'm surprised that Karen Carpenter is not much different to Taylor Swift. The former sounds a lot deeper, but I guess the difference is in timbre rather than pitch.
I had no idea about the range of Axl Rose. But male singers always have an advantage in that they can hit very low notes and also have access to falsetto. Mariah Carey is also exceptional due to access to the whistle register. Christina Aguilera is one of the more impressive singers on the list for me.
Does "vocal range" necessarily mean the singers can hit every note (or every possible pitch) between those notes? I know from singing myself that the notes in the "overlap" portion between different vocal registers can be difficult. Also some vowels are harder to hit at certain notes than others. This can make some songs problematic even if they are technically within your range.