Maiopatagium is an extinct genus of gliding euharamiyids which existed in Asia during the Jurassic period.[1] It possessed a patagium between its limbs and presumably had similar lifestyle to living flying squirrels and colugos. The type species is Maiopatagium furculiferum, which was described from the Tiaojishan Formation by Zhe-Xi Luo in 2017; it lived in what is now the Liaoning region of China during the late Jurassic (Oxfordian age).[2]Maiopatagium and Vilevolodon, described concurrently, offer clues to the ways various synapsids have taken to the skies over evolutionary time scales.[3] A second species, M. sibiricum, was described from the Bathonian aged Itat Formation in western Siberia, Russia in 2019[4]