New Middle Jurassic fossils shed light on the relationship of recent Panorpoidea (Insecta, Mecoptera)

Examination of a diverse and abundant collection of Middle–Upper Jurassic scorpionflies from the Jiulongshan Formation of Daohugou village in Inner Mongolia, China, has enabled a further delimitation of the morphological variability of the polyphyletic family Orthophlebiidae. The family Protorthophlebiidae fam. nov. is herein erected on the basis of new characters present in new specimens of Protorthophlebia Tillyard, 1933 preserved with bodies....