Based on a molecular clock analysis of mitochondrial DNA , it has been estimated that Megupsilon and Cyprinodon diverged from a common ancestor approximately 7 million years ago .
Megupsilon aporus is the only known member of its genus .
Based on a molecular clock analysis of mitochondrial DNA , Megupsilon aporus has been estimated that Megupsilon and Cyprinodon diverged from a common ancestor approximately 7 million years ago .
Megupsilon aporus is the only known member of its genus .