Consider the great ape example I worked through with an Excel spreadsheet (link above). These are Jukes-Cantor distances based on number of mtDNA sequence differences. [See Glossary and pp. 91-93 of ...

2009). Adaptive radiations and extinctions -- The rise and fall of Miocene Apes Phylogenetic trees based on genetic data cannot reveal much about what might have caused adaptive radiations or ...

The tree, the most complete of its kind, shows the evolutionary timescale of the whole order of primates, including monkeys, ...