Their cladogram is shown on the left. Later, in 2017, in another phylogenetic analysis, Eopteranodon was considered a member of the family Tapejaridae based on proportions of the crest on the lower jaw and the limbs.
A diagram illustrating their evolutionary connections is displayed on the left. Subsequently, in 2017, an additional investigation into their ancestry led to the classification of Eopteranodon as a member of the family Tapejaridae, based on comparisons of crest features on its lower jaw and limbs.