Shenshou
... that the discovery of the fossil of Shenshou, a squirrel-like early mammal from the Tiaojishan Formation, pushed the origin of mammals back to the Late Triassic, 220 million to 200 million years ago?
... that the discovery of the fossil of <i id="mwBgc"><b id="mwBgg"><a href="./Shenshou" id="mwBgk" rel="mw:WikiLink" title="Shenshou">Shenshou</a></b></i>, a squirrel-like early mammal from the <a href="./Tiaojishan_Formation" id="mwBgo" rel="mw:WikiLink" title="Tiaojishan Formation">Tiaojishan Formation</a>, pushed the origin of mammals back to the <a href="./Late_Triassic" id="mwBgs" rel="mw:WikiLink" title="Late Triassic">Late Triassic</a>, 220 million to 200 million years ago?