Yi qi

Recently documented membrane winged gliding Jurassic Scansoriopterygid just going to prove nature will always throw you a curve ball just as you suspect you might be figuring out her ways. Dinosaurs seem to have experimented much more with flight than we initially suspected, and it seems it wasn't always directly involving their plumage at all, according to this pigeon-sized, dinosaurian flying squirrel. It even went so far as to sprout a whole new finger of cartilage to hold up its new wings - what dedication to the sport!

Really odd that this one actually existed, looks a lot like another Sheatherian griffon.