Largest, up to date, clustering tree of cranial variation worldwide.

Characterization of Biological Diversity Through Analysis of Discrete Cranial Traits, Hanihara et al 2003

Joining tree formed from 20 different discrete cranial traits.

Few notes. Awkward position of Russians can be explained by substancial "Scythian" substrata in Central Asia and also samples are from South Russia (ethnic Russians still). Finland/Ural sample is mostly ethnic Finns from Finland with "few" undefined "Uralic-speakers" included. I suspect that they are Karelians.