Another Clear Instance of Toledot Referring to An Account

 Numbers 3:1 used the term to refer to the records that Moses and Aaron took from meeting God on Mt. Siani. Here is an interleaner translation so you can see what I mean. 

So it can mean geneological records, but only because it can mean records of any kind, including a narrative or an account. Thus when it says in chapter six "These are the generations of Noah" the same word means "account". 

This is important because it further supports the Tablet Theory and what it says about the phrase.