text: The Nabarlek ( Petrogale concinna ) , also known as the Pygmy Rock-wallaby or the Little Rock-wallaby , is a very small species of macropod found in northern Australia .
simplified: The Nabarlek ( Petrogale concinna ) is a small marsupial , also known as the Pygmy Rock-wallaby or the Little Rock-wallaby , a type of wallaby from northern Australia .