The family Zhelestidae is among the most diverse Spec mammalian groups . It contains gliders, giant herbivores , small weasel like carnivores , pig like omnivores and more . Along with cimolesta they are basel eutherians and they're fossils have been found all around the world but modern Zhelestids are endemic to Madagscar. They're name , Shroovaloo, is a reference to both their nature as a basal eutherian, and as mistaken marsuipials.