[1] Volaticotherium had a gliding membrane, sometimes compared to modern-day flying squirrel, that extended not just between the limbs and at least the tail base, but also the digits, "sandwiching" them.
[5] The tail was flat, increasing the airfoil, and the limbs were proportionally long, comparable to those of modern flying and gliding mammals.
In particular, Volaticotherium itself has been compared to insectivorous bats, and its femur has unique adaptations among mammals that make it resistant to flight stresses, and render terrestrial locomotion cumbersome.
As the analysis did not place Volaticotherium within any of the previously known main groups of Mesozoic mammals, the authors of its description erected a separate family Volaticotheriidae and order Volaticotheria for it.
[12] More recent studies keep this relationship, but move Volaticotherium, Argentoconodon, Ichthyoconodon and Jugulator (and, possibly by association, Triconolestes) in a more basal position among triconodontids, away from alticonodontines.