Marsupial Monkey

title is based off how many marsupials are named simply for what placental mammals they resemble,

anyway, speculative/convergent evolution critter intended to be a primate-like marsupial descended from south american opossum stock. 

rationale is opossums already have prehensile tails, grasping hands and feet with opposable thumbs on the hindfoot, and even carry their young on their backs, so i wanted to create one with a more specialized tree-swinging monkey body

i looked at various lemurs and monkeys including mangabeys and rhesus macaques, as well as large didelphis opossums and smaller wooly opossums.