Unwin at that time considered those two species to be close relatives. However, more recent studies have shown Germanodactylus to be much more primitive, either an archaeopterodactyloid or a primitive member of the Eupterodactyloidea.
At the time, Unwin considered the two species to be closely connected. Nevertheless, more recent research has demonstrated that Germanodactylus is significantly more primitive, possibly belonging to the archaeopterodactyloid group or being a basic member of the Eupterodactyloidea.