The current ISOGG "Research Tree" (with latest info) may be found at http://www.isogg.org/tree/ISOGG_HapgrpG.html
For the hierarchy of these subhaplogroups see Y-DNA Haplogroup G and its Subclades.
In SNP name order. WikiTreers are encouraged to add to this list. Please show only one example per subhaplogroup.