List of mammals of Paraguay

Species assessed using this system have the following instead of near threatened and least concern categories: The armadillos are small mammals with a bony armoured shell.

The order Primates contains humans and their closest relatives: lemurs, lorisoids, monkeys, and apes.

The bats' most distinguishing feature is that their forelimbs are developed as wings, making them the only mammals capable of flight.

Opossums probably diverged from the basic South American marsupials in the late Cretaceous or early Paleocene.

They are small to medium-sized marsupials, about the size of a large house cat, with a long snout and prehensile tail.