Haplogroup R-Z331 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | R1b1a1b1a1a1c2b2b |
|---|---|
| Defining mutations | 5 |
| Downstream branches | 55 |
| Estimated age | 4,100 years |