 Examples may also exist in ancient DNA, though due to poor quality it is often impossible to tell whether or not the ancients carried the mutations that define subclades.Some examples described in older articles, for example two found in Turkey, are now thought to be mostly in the more recently discovered sub-clade R1b1a2 (R-V88).Most examples of R1b therefore fall into subclades R1b1a2 (R-V88) or R1b1a (R-P297).