Molecular Clock · Reading Time From Neutral Mutations
unseel.com · Zuckerkandl–Pauling 1962 · Kimura neutral theory
Cyt-c 1 sub / site / 20 Myr
HIV-1 ~10⁶× mammals
Stage common ancestor
Lineage branch
Neutral substitution
Calibration node (fossil)
Inferred divergence time
Unseel.com · Molecular Clock