[2][3] They are "widespread along the Central Cordillera" and live at elevations between 1,500 and 3,600 metres (4,900 and 11,800 ft) above sea level.”[2] Pygmy ringtails are herbivores or “arboreal folivores” that eat pollen, lichen, fungus and “epiphytic moss.

[4] They have “large incisor” teeth which help with “clipping forage from plants” and have “selenodont molars” that help with “shredding ingested foliage.

"[3] They have “an enlarged cecum that acts as a fermentation chamber”[5] and allows “gut bacteria to breakdown [sic] plant tissue.

The Pseudochirulus mayeri also have “an opposable first toe on their hind feet, and their second and third toes are syndactylus.”[3] These possums make dreys, or nests, “in the forks of trees, less than four meters off the ground.” These nests consist of foliage similar to moss and lichen and they enter into “state[s] of partial torpor” during the day.

For example, young P. mayeri “use a twitter-like call when in search [for] their mother and make a screeching noise as an alarm call.” However, they mainly communicate with one another through their olfactory.