Genus Petaurus is a scientific classification of a group of marsupials commonly known as gliders or flying squirrels. The genus includes several species such as the sugar glider, squirrel glider, and mahogany glider. Synonyms for Genus Petaurus include flying phalangers, gliding possums, and aerial opossums. These synonyms all describe the unique ability of these marsupials to glide effortlessly through the air using flaps of skin along their sides. Although these animals are often referred to as flying squirrels, they are not true squirrels and belong to a separate family within the order of marsupials.