There is no missing link.
Its just a line of fosills from A..B...C......H..I...N...V...X..YZ, and whenever there is a fossil discovered to be - say - put in between I and N you have 2 new "gaps".
Which in turn get popularized as "the (new) missing link".
Yes the fossil record is not complete (that would require a unbroken chain from FossilA to FossilZ - an by its nature fossilised stuff is rare (enough) to not be complealty avaliable).
# I'm no expert - and the missing link stuff via media is getting to me - so here is my layman clarification. Also the Letters A-Z have only illustrative purposes here. #