Each one of the patriarchs listed here are listed for a reason: to show us where Noah came from. Each one of the these patriarchs had other sons and daughters besides those mentioned here, but God singles out these particular men to teach a specific lesson.
Because of a technical error, only part of the discussion was recorded.
The lineage represented in Genesis 5 are the leading righteous figures before the flood. The names of these men can teach us about the working of God in a world much like our own, growing increasingly dark as judgment approaches.