Leadbeater's Possum

Leadbeater's possum (Gymnobelideus leadbeateri) is a critically endangered possum largely restricted to small pockets of alpine ash, mountain ash, and snow gum forests in the Central Highlands of Victoria, Australia, north-east of Melbourne. In June 2025 it was reported that an image of a sole possum was recorded on a camera trap in October 2024 near Yarrangobilly Caves, Southern NSW, within the Kosciuszko National Park. It is primitive, relict, and non-gliding, and, as the only species in the petaurid genus Gymnobelideus, represents an ancestral form.

Le phalanger de Leadbeater (Gymnobelideus leadbeateri) est une espèce d'opossum de la famille des Petauridae endémique de l'Australie. C'est l'unique espèce du genre Gymnobelideus. Il doit son nom à l'ancien taxidermiste du musée d'histoire naturelle de l'État de Victoria, John Leadbeater.

El falangero de Leadbeater o del río Bass (Gymnobelideus leadbeateri) es una especie de marsupial diprotodonto de la familia Petauridae. Es la única especie de su género, de la que no se reconocen subespecies​ y es endémico de Australia. ​ Es el animal estatal de Victoria.