 "Boreopterus" and "Feilongus" were found by Andres and colleagues in 2013 to be closely related to "Cycnorhamphus", making them members of the Gallodactylidae as had been originally thought when "Feilongus" was discovered.A subsequent analysis including the other supposed boreopterids found that "Boreopterus" itself, and therefore the name Boreopteridae, was indeed a member of the ornithocheiroid clade, but that "Feilongus" was in fact a ctenochasmatoid closely related to "Gnathosaurus".The true boreopterid clade was found to contain "Boreopterus", "Guidraco", and "Zhenyuanopterus" by Andres and colleagues in 2014, and was then found to contain just "Boreopterus" and "Zhenyuanopterus" by Wu and colleagues in 2017.