Scientists think that the earliest known marsupial fossil, Sinodelphys Szalayi, lived about 125 mya (million years ago). We have many other marsupial fossils that probably lived between 90 and 65 mya.
Scientists think that the earliest known marsupial fossil, Sinodelphys Szalayi, lived about 125 mya (million years ago). We have many other marsupial fossils that probably lived between 90 and 65 mya.