Petauridae is a family of possums containing 11 species: four species of trioks and striped possum (genus Dactylopsila), six species of wrist-winged glider (genus Petaurus), and Leadbeater´s possum (Gymnobelideus leadbeateri), which has only vestigial gliding membranes. Most of the wrist-winged gliders are native to Australia, whereas most of the striped possums to New Guinea, but some members of each group are found on both sides of the Torres Strait. Leadbeater´s possum is endemic to Victoria, Australia.
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