 PLOT: There are numerous inconsistencies between generation names  and clone ages. McCord can determine Lincolns and Jordans real  ages by their generation designation ... Lincoln is an "Echo" so he  must be three, Jordan is a "Delta" so she must be four. But  Starkweather, also a Delta, has only been there for six months while  Gandu, another Echo, has been there for seven years. Seven Foxtrot,  presumably two, is brand new while Lima One Alpha, created only as a  breeder, has presumably been there for seven years.