The Missing Link Fallacy occurs when reasoning leaves out critical information (missing link) that would change the outcome of the reasoning.
Examples of the Missing Link Fallacy
“We can line up fossils according to similarity. Therefore, one-celled simple living things evolved into ever more complex living things until we have all the variety we see today.”
There are many missing links in this argument. One of them is the fact that we can line up 100 pieces of assorted kitchen utensils and silverware (or any other objects) according to similarity. This proves nothing. Another is the fact that Darwinism predicted finding many transitional fossils between kinds (families) of living things. To date, not one indisputable example has been found. Another missing link is the fact that a common designer would explain similarities and many of the designs that don't fit the molecules-to-man story. Missing from this argument is the fact that God says that He created all things. One thing that this argument fails to point out (missing link) is that the entire argument is actually just creative storytelling based on arbitrary assumptions, and the competing account is by Divine revelation. Therefore, the entire argument comes down to made-up stuff versus Divine revelation.