[1] Specifically, it is found among Aboriginal Australians.
[4] It is one of the rarest haplogroups.
As of 2022, FamilyTreeDNA reports that only 4 people in their customer base who have tested their complete mitochondrial sequences are members of the haplogroup.
[5] YFull reports 9 known members, 8 of whom are stated to be from Australia, and that the haplogroup is at least 20,000 years old.
[6] The following table lists relevant GenBank samples: Phylogenetic tree of human mitochondrial DNA (mtDNA) haplogroups