Glironia venusta (Thomas 1912; snout-vent length 20cm) is the extant bushy-tailed opossum. It is nocturnal, arboreal, small and omnivorous. Glironia lacks a marsupium (= pouch), by convergence with several placentals and marsupials. The upper canine is lost. The first premolar has the appearance of a canine.

Dromiciops is a relative. Placental moon rats, shrews, tenrecs, archaeocetes and odontocetes are descendant taxa in the LRT.