 They are still smaller than that of modern echolocating insectivorous bats (Microchiroptera) but they are already larger than that of modern non-echolocating fruit-eating bats (Megachiroptera).Along with their known diets and habits, this is a clear evidence that "Palaeochiropteryx" was very much capable of echolocation like modern microchiropterans.The fossil record of bats extends back at least to the early Eocene, and chiropteran fossils are known from all continents except Antarctica.